President Donald Trump complained about House Speaker Nancy Pelosi's delayed transmission of the articles of impeachment to the Senate, which may delay a trial in the GOP-controlled chamber.
"It's so unfair," Trump said, days after he was impeached by the House, as he spoke at a conservative student conference organised by the group Turning Point USA.
"They are violating the Constitution," he added. Pelosi has refused so far to send the articles of impeachment to the Senate, in part to provide more leverage to Democrats in that chamber as they seek to negotiate the rules for the trial proceedings.
Senate Majority Leader Mitch McConnell and Democratic leader Chuck Schumer remain at an impasse over whether there will be new witnesses and testimony in the trial.