Donald Trump will go on trial in the US Senate soon after an impeachment case against the former president is transmitted by the House of Representatives on Monday, top lawmakers announced.

The House impeached the Republican leader for a historic second time on January 13, just one week before he left office, but Speaker Nancy Pelosi has yet to send the article of impeachment to the Senate.

The step is necessary in order to launch the trial process.

Trump was impeached on a single charge of “incitement of insurrection” for his role in whipping up his supporters during a speech in Washington on January 6, the day a pro-Trump mob stormed Congress with deadly consequences.

The Senate’s top Republican, Mitch McConnell, severely reprimanded the outgoing president and left the door open for voting to convict Trump.