At the center of the impeachment of President Donald Trump was the unfounded claim that Hunter Biden, son of former Vice President and current presidential candidate Joe Biden, improperly benefited from his father's office while sitting on the board of Ukrainian natural gas company Burisma. Furthermore, whether Joe Biden's role in the dismissal of a Ukrainian prosecutor had been inappropriate.
Trump's defense team contended that, by withholding Congress-approved aid to Ukraine in an attempt to have that nation's authorities announce an investigation into Hunter Biden, the president was merely rooting out corruption.
Democrats, on the other hand, contended that the act of withholding the aid was done to procure a personal political favor, namely that announcement of an investigation into the son of Trump's political rival, which constituted a bribe.