Please feel free to read the whole 85 page document, and stop repeating misinformation about the subject https://www.intelligence.senate.gov/sites/default/files/docu...
> The Committee found that the IRA's Information warfare campaign was broad in scope and entailed objectives beyond the result of the 2016 presidential election. Further, the Committee's analysis of the IRA's activities on social media supports the key judgments of the January 6, 2017 Intelligence Community Assessment, "Assessing Russian Activities and Intentions in Recent US Elections," that "Russia's, goals were to undermine public faith in the US democratic process, denigrate Secretary Clinton,· and harm her electability and potential presidency."5 However, where the Intelligence Community assessed that the Russian government "aspired to help President-elect Trump's election chances when possible by discrediting Secretary Clinton and publicly contrasting her unfavorably to him," the Committee found that IRA social media activity was overtly and almost invariably supportive of then-candidate Trump, and to the detriment .of Secretary Clinton's campaign.
> The Committee found that the Russian government tasked and supported the IRA' s interference in the 2016 U.S. election. This finding is consistent with the Committee's understanding of the relationship between IRA ownerYevgeniy Prigozhin and the Kremlin, the aim and scope of the interference by the IRA, and the correlation between the IRA's actions and electoral interference by the Russian government in other contexts and by other means.7 Despite Moscow's denials, the direction and financial involvement of Russian oligarch Yevgeniy Prigozhin, as well as his close ties to high-level Russian government officials including President Vladimir Putin, point to significant Kremlin support, authorization, and direction of the IRA' s operations and goals.
> The Committee found that Russia's targeting of the 2016 U.S. presidential election was part of a broader, sophisticated, and ongoing information warfare campaign designed to sow discord in American politics and society. Moreover, the IRA conducted a vastly more complex and strategic assault on the United States than was initially understood. The IR.A's actions in 2016 represent only the latest installment in an increasingly brazen interference by the Kremlin on the citizens and democratic institutions of the United States.
Etc.
If that document doesn‘t do it for you, you can read quite a bit more relevant detail in the (still partly redacted) Mueller report (though the counterintelligence work that the Special Counsel’s office did is not explicitly part of the mandate of that report, so it doesn’t cover the bulk of the evidence about election interference uncovered).