Throughout human history, certain individuals stand out due to the role they have played in key historical events and the impact’s that they have had within the context of their times.
Your first sentence needs to be a judgement based upon what the question is asking - namely was Trotsky vindicated by history - agree/disagree? As the question specifically mentions Trotsky, you also want to explicitly address him within your judgement, and to what extent he has been "vindicated". My judgement would be "Though remaining a controversial figure, Leon Trotsky has overall been vindicated by history." - However as we ascertained from the Question thread that probably won't be yours
(and that is totally fine!)This is particularly true in the case of Leon Trotsky, perhaps one of the most debated politicians
i'm not too fussed on the term politician here - he is more so known as a revolutionary in Russian history. Trotsky’s role within the Soviet parliament has rightfully been condemned a failure among both his critics and historians who despite his obvious intelligence, consider him to have been a ‘naďve idealist and politician.’
Great judgement, very strong - just needs to be at the beginning of your intro! 
Despite having a number of positive attributes,
I love how you have differentiated here - adding a bit of nuance to your essay, but still maintaining a strong judgement aka not sitting on the fence.Trotsky has been wrongly vindicated by his admirers throughout history, as seen through a study of his role within the Russian Government and the opinions of critical historians.
I think I need a bit more of an outline of your essay - what specifically is each paragraph discussing?Despite being somewhat vindicated by supporters for his many strengths and positive attributes demonstrated throughout his time in Russia, Trotsky was
in many ways overall (If your judgement from the intro was that he was overall a failure then that must remain consistent through your paragraphsa failure as it is evident to see that his weaknesses truly did outweigh his strengths.
#shade 
Being the naiivee idealist and ruthless authoritarian he was, Trotsky stuck too rigidly to his ideology of permanent revolution to the detriment of the party and the Soviet Union.
I wanna debate you so hard rn. Not a bad thing, just letting ya know
Thats why I love Russian history so much, really gets me fired up haha. In my opinion he didn't stick too rigidly to his ideology, in fact the exact opposite! During the Treaty once it becomes clear that his position fails he immediately supports Lenin and resigns from his position. Some might say that that was out of frustration, but in my opinion that was more so due to the fact that he believed that he was not right of the position after this failure. This more so suggests that he didn't stick so rigidly to his ideology, because if that were the case wouldn't he want to keep the position of Commissar of Foreign Affairs given how strongly his ideology relied on foreign affairs/global revolution? I also think that the Civil War is a clear example of this, as the reinstating of rank and class within the army, and the appointment of 50 000 ex-tsarist officers greatly went against ideology - but he implemented them because on a practical level they were needed in order to secure victory. I probably will debate you throughout because I can't help it, so I'm going to mark those in red so that you know that that stuff isn't necessarily stuff that you have to change - more so just something to maybe consider 
Prior to his death, Lenin’s final testament had been completed with Trotsky being the only one who stood to benefit from the publication of the testament,
In a way yes - though the Testament did criticise Trotsky as well (though not as much as Stalin by any means). And yes, individually he may have benefitted, however Trotsky was also fiercely loyal to the Bolshevik party (at least imo), and the releasing of said Testament would have caused further disruptions to an already shaky party. however he did not object when it was decided that it should be suppressed. This was a failure on Trotsky’s behalf, as it allowed Stalin to remain strong and powerful and essentially lead to his victory in the struggle for power. According to historian David Van Tol, Publishing the testimony could have called for the removal of Stalin from his position as general secretary, as stated by Lenin within the testament “Comrade Stalin, having become General secretary, has unlimited authority concentrated in his hands, and I am not sure that he will always be capable of using that power with sufficient caution.”
Nice integration of both primary and secondary sources 
Hence revealing one of Trotsky’s greatest weaknesses to be the fact that he completely overestimated Stalin when he chose not to publicize the testament. Besides this, and despite his intelligence he also lacked the political skills needed in order to become Commissar
Do you mean Chairman? Trotsky was a Commissar (Commissar of War at the time, though he also fulfilled the position of Commissar of Foreign Affairs earlier). According to historian Richard pipes, Trotsky’s role in the November revolution
Unless your quoting Pipes here (which in that case make sure you're using " ") I'd call it October Revolution - that is the most common iteration, and the least likely to confuse a marker (though most will understand what you mean) has been exaggerated throughout time, wrongly vindicating him. Pipes states that “Vladimir Lenin was primarily responsible for the success of the uprising, and Trotsky was simply carrying out demands.” It is evident that Trotsky’s lack of political and tactical skills was in many way’s a weakness resulting in condemnation as a failure, as it effected the way that he was perceived by not only the Russian people and government of the time, but also by countless people throughout history. During the Treaty of Brest-Litovsk, Trotsky delayed negotiations in order to receive word from Britain and France. Pipes criticizes Trotsky for this, arguing that through delaying the negotiations, he only “riled the Germans, resulting in a more punitive and humiliating peace which otherwise would not have been the case.”
Nice supporting quote. It is because of these many failures and weaknesses which Trotsky possessed and revealed throughout his career which has resulted in his condemnation as a failure by his critics, and rightfully so.
Apart from the many weaknesses which led to Trotsky’s condemnation as a failure, he also possessed a number of successful and positive strengths, though many of these strengths, despite coming from the goodness of his heart, resulted in his condemnation as a failure.
Might want to rephrase this a bit - a tad confusing.During the civil war and his role as Commissar for war, Trotsky had gained a large amount of Military support. Historian Isaac Deutscher
bae 💕 commends Trotsky for his brilliant military leadership during the conflict and excuses the abuses that were committed during the duration of the conflict, arguing that the future of the revolution was at stake. Richard Pipes however, emphasizes the fact that Trotsky was a brutal and harsh military commander, and that despite his power and support as commissar for war, the way’s in which he had gone about utilizing his military power and support was in many ways, a great failure.
You need some detail to support this - give us some examples of the brutal things that he did. Suppression of the Kronstadt Rebellion could be a good one. Another strength of Trotsky’s was his confidence within the party.
Is this really a strength? According to historian Isaac Deutscher, Trotsky truly believed that Stalin would not even think to succeed Lenin because of the fact that he was an inferior candidate. Deutscher states “Trotsky refrained from attacking Stalin because he felt secure… it seemed to Trotsky almost a bad joke that Stalin, the wilful and sly but shabby and inarticulate man in the background should be his rival.” It is believed that if Trotsky had of overcome his self-confidence and spoken up about his growing concerns regarding Stalins presence within the parliament whilst Lenin was still there, he would have almost certainly supported Trotsky, and could have annihilated Stalin as a threat immediately.
I don't think this is purely an issue of self-confidence though - Stalin was a sly mofo and really manipulated everyone into percieving him to be this docile boring figure.Lenin himself also acknowledge within his testament that trotsky’s self-confidence doubled as a weakness, stating ‘distinguished by his too far-reaching self- confidence.’ Although Trotsky’s confidence had assisted him as an asset to his personality in many ways throughout his career
how though?, it is clear to see that this confidence lead to his underestimating of Stalin’s rise within the parliament, contributing significantly to his loss in the power struggle.
I think you need to segue to your next point better -During the 1917 Revolution, Trotsky had evidently created a significant role for himself as a key organizer through his pragmatic tactical organisation. As a result of his organizational skills, historians such as Isaac Deutscher believe that this was what singly-handedly saved the Bolshevik regime in Revolution. However, historian Richard Pipes argues a conflicting view, stating that it was Trotsky’s ‘obsessive’ need to organize which essentially caused him to overlook the rising issue of Joseph Stalin. Hence, majority of Trotsky’s strengths can be seen, especially through the eyes of Richard Pipes, to have doubled as weaknesses in the essence that they have resulted in his condemnation as a failure through the eyes of many.
Really interesting argument 
Trotsky encountered a number of factors throughout his career which were completely out of his control, and which contributed to his condemnation as a failure by critics throughout history. Upon experiencing symptoms of an undiagnosed fever, this sickness coupled with the stresses of his situation within the party put an extremely heavy weight on Trotsky’s shoulders, as he “ruefully noted that his illness could hardly have come at a worst time.” The illness which was completely out of his control had a significant impact on his performance within the party causing him to miss a number of important meetings and other important matters. Furthering his situation, censorship on Stalin’s behalf meant that only ‘bad’ or negative things could be written and published about Trotsky, creating the impression of aloofness and weakness which was not helped by the fact that, through Stalin’s plans, Trotsky was not informed in time of Lenin’s death
He wasn't just not informed in time - he was given the wrong date! and thus was not present at his funeral. This created a very bad image for the potential successor, although it was completely out of his control in a ploy by Stalin to take the place of Lenin. Hence, it is clear to see that these factors could not have been helped by Trotsky, although they certainly did contribute to his condemnation as a failure by critics and historians alike.
This paragraph is a lot weaker than your others. I don't think him being ill really warrants an entire paragraph to justify your point, and doesn't really support your judgement that he was a naive idealist. Your argument is interesting, but I'm not too sure how relevant to the question. Hence, it can be seen that Trotsky’s weaknesses surly do outweigh his strengths, and therefore it can be said that throughout history, he as been wrongfully vindicated by his admirers who see him as a ‘hero; in contrast to Stalin, although he was in actual fact a failure, and his critics and historians were right to condemn him so.