House Speaker Nancy Pelosi said it was "unusual" for her counterpart in the Senate, Majority Leader Mitch McConnell, to back a resolution aimed at dismissing the impeachment case against President Donald Trump.

"Dismissing is a cover-up," Pelosi said Sunday on ABC's "This Week."

McConnell on Friday was the 13th co-sponsor of a resolution by Republican Sen. Josh Hawley of Missouri to alter Senate rules and dismiss Trump's impeachment if Pelosi didn't send over the impeachment articles within a specified time.