Donald Trump became the third president in U.S. history to be impeached when the House of Representatives, controlled by Democrats, formally charged him on Dec. 18 with abuse of power and obstruction of Congress.
The votes set up a trial in the Republican-controlled Senate, where lawmakers must decide whether to convict Trump and remove him from office.
House Speaker Nancy Pelosi is holding off on sending the articles of impeachment against him to the Senate in a bid to increase pressure on Republicans there. She has also not yet announced the managers, or prosecutors, who will present evidence in the trial.
Trump is very unlikely to be convicted and removed from office by the upper chamber of Congress because it is controlled by his party. A two-thirds majority vote in the Senate is needed for a conviction on impeachment charges.
Republicans and Democrats are at loggerheads over how the trial will play out. Pelosi and other Democrats want to call top Trump aides as witnesses and are seeking assurances that the trial will be held on terms they consider fair.
Trump is accused of abusing his power by holding up $391 million (¥43 billion) in security aid to Ukraine to get Kiev to announce a corruption investigation of former Vice President Joe Biden, a leading candidate for the Democratic nomination in the November election.
The president is also charged with obstruction of Congress for directing administration officials and agencies not to cooperate with the House impeachment inquiry. (Reuters)