Senate Majority Leader Mitch McConnell announced on Tuesday that he has enough Republican votes in the Senate to proceed with President Trump's impeachment trial without Democratic support.
The trial has been held up by House Democrats' refusal to send the articles of impeachment, passed last month, to the Senate. Senate Democrats have also been demanding that witness testimony take place during the trial itself.
McConnell said on Tuesday that the impeachment trial would first go through a "phase one" of arguments from the defense and prosecution, as well as written questions from senators. The issue of witness testimony would be addressed following those proceedings.
As the majority leader noted in his announcement, House Democrats have held onto the articles of impeachment for around three weeks. The articles refer to the president as "a threat to national security and the Constitution."