More than 50.5 million early votes have been cast across the United States with three days to go before the midterm elections, according to The Guardian's early voting report. The report, credited to Oliver Milman and agencies, described the total as a record and cited a surge in early voting, with millions more Americans going to the polls than at the last comparable midterm election.

The Guardian also reported that Democrats outnumber Republicans among early voters in states that collect that information. The report placed the early vote against a series of tight contests that will determine control of Congress.

A separate report from CBS News, a video analysis titled "Analyzing the midterms with 3 days to go," features Robert Costa, who shares his analysis of key races with just a few days to go. The CBS News summary does not name the races or give vote totals, so it cannot be checked against the Guardian figures. The video is listed without an author in the material available for this story.

Taken together, the two reports describe a midterm cycle with a surge in early voting and a number of tight contests for control of Congress. Only the Guardian report gives figures. The Guardian summary available for this story ends partway through its account, and it does not say how early totals will compare with final results. It also does not give totals for individual states beyond the partisan comparison noted above.

Sources: CBS News: Analyzing the midterms with 3 days to go; The Guardian: More than 50m Americans cast ballots in early voting with three days to go before midterms.