Lev Parnas, a former henchman to Trump lawyer Rudy Giuliani, was found guilty on all six criminal counts leveled against him on Friday.
In a quickly rendered verdict, a jury found Parnas guilty of the most serious charge leveled against him, conspiracy to make foreign contributions to political campaigns.
Parnas was also found guilty of making false statements, falsifying records, and other crimes.
Parnas was arrested along with fellow Giuliani henchman Igor Fruman back in 2019 for allegedly setting up a shell company to funnel hundreds of thousands in Russian donations to Republican candidates.
Parnas and Fruman were also key figures in Giuliani's attempts to shake down the Ukrainian government to publicly announce an investigation into President Joe Biden, who at the time was seen as former President Donald Trump's biggest potential rival for the 2020 presidential election.
Trump ordered military aid to the Ukraine to be withheld shortly after asking the Ukrainian president to do him a "favor" by investigating Biden.
Trump's actions would result in his first impeachment in late 2019. He would be impeached again just over a year later for inciting a deadly riot at the United States Capitol building.