Sidney Powell: 450,000 ballots voted only for Biden, left the rest blank

This is a bold claim - I'd like to know if she's right.

If we don't investigate these irregularities the confidence in our elections will simply cease to exist.

Celine Ryan reports:

Attorney Sidney Powell claims that her team has found 450,000 ballots with only votes for Biden and no down-ballot selections made. Powell suggests that this number of single vote ballots is suspect, and indicative in part of "abject fraud" that she says flipped the election to Biden.
Powell is the attorney for Michael Flynn and has been vocal about the need to challenge the results of the General Election, which she contends is rife with evidence of a "massive and coordinated effort to steal this election," by efforts to "delegitimize and destroy votes for Donald Trump, to manufacture votes for Joe Biden"
"They have done it in every way imaginable, from having dead people vote in massive numbers, to absolutely fraudulently creating ballots that exist only voting for Biden," Powell told Fox's Maria Bartiromo. We've identified identified at least 450,000 ballots in the key states that miraculously only have a mark for Joe Biden and no other candidate."

A worker pushes a cart with boxes of ballots at the Clark County Election Department in North Las Vegas, Nevada, U.S., on Thursday, Nov. 5, 2020. Democratic nominee Joe Biden is closing in on the 270 electoral votes he needs to win the presidency, while President Donald Trumps path to re-election has narrowed. Biden needs a win in one more state -- Pennsylvania, Georgia, Nevada or North Carolina -- provided that other race calls stand. Photographer: Joe Buglewicz/Bloomberg via Getty Images