Senior Democratic aides said the House was “very unlikely” to take the steps necessary to send the articles to the Senate until at least early January, a delay of at least two weeks and perhaps longer.

“So far we haven’t seen anything that looks fair to us,” Pelosi told reporters at a news conference just moments after the House charged Trump with abuse of power and obstructing congressional investigations. “That would’ve been our intention, but we’ll see what happens over there.”…

Though the House adopted two articles of impeachment charging Trump with abuse of power and obstruction of congressional investigations, it must pass a second resolution formally naming impeachment managers to present the case in the Senate. That second vehicle triggers the official transmission of articles to the Senate.

By delaying passage of that resolution, Pelosi and top Democrats retain control of the articles and hope to put pressure on Senate Majority Leader Mitch McConnell to adopt trial procedures they consider bipartisan.