Speaker Nancy Pelosi (D-Calif.) has announced that the House will vote Wednesday on a resolution appointing House impeachment managers and transmitting the articles of impeachment to the Senate, allowing the trial of President Trump to begin this week.

In anticipation of the historic event, senators in the chamber controlled by Majority Leader Mitch McConnell (R-Ky.) have been maneuvering behind the scenes about whether the trial should include witnesses and who might be summoned to testify.

The crux of the Democrats’ case is the allegation that Trump tried to leverage a White House meeting and military aid, sought by Ukraine to combat Russian military aggression, to pressure Ukrainian President Volodymyr Zelensky to launch an investigation of former vice president Joe Biden and his son Hunter Biden, as well as a probe of an unfounded theory that Kyiv conspired with Democrats to interfere in the 2016 presidential election.

●Top Senate Republicans reject Trump’s renewed call for immediate dismissal of impeachment charges.

●Russian spies hacked Ukrainian gas company at heart of Trump impeachment trial, company says.

●Trump amplifies incendiary tweets about Pelosi after her comments on Iran protests.