White House chief of staff Mark Meadows dismissed FBI Director Chris Wray's testimony that the U.S. has never historically seen evidence of widespread voter fraud, including by mail, during an appearance on "CBS This Morning" on Friday.

Why it matters: Meadows' statement highlights the Trump administration's strategy to sow doubt in November's election results by challenging the legitimacy of mail-in ballots, which are expected to skew heavily in Democrats' favor.