Republicans have filed dozens of lawsuits in several battleground states featuring toss-up races in an effort to disqualify thousands of mail ballots before Tuesday's election.

For months, Republican nominees have urged voters to forego early and absentee voting methods and instead cast their ballots on Election Day.

On Monday, the Washington Post reported that Republican officials in Michigan, Pennsylvania, and Wisconsin, all swing states that President Joe Biden won in 2020, filed lawsuits to throw out thousands of ballots.

In Wisconsin, Republicans won a battle against the nonpartisan Wisconsin Elections Commission that will require ballots with an incomplete witness address to be voided.

A Michigan judge on Monday tossed out the lawsuit the Republican nominee for secretary of state in Michigan seeking to change how Detroit ballots are processed. The judge said the nominee, Kristina Karamo, "raised a false flag of election law violations and corruption" and provided no evidence to back her claims.

In Pennsylvania, the state's high court ruled that undated mail-in ballots shouldn't be counted, which the Amerian Civil Liberties Union is challenging in federal court.

Democratic Pennsylvania Gov. Tom Wolf tweeted his reaction to the ongoing legal efforts.

Pennsylvania Gov. Tom Wolf shares his thoughts on the ongoing effort to discard mail-in ballots in his state.

Since 2020 and before, the Republican party with Trump at the helm has made a far more concerted effort to cast doubt on the legitimacy of mail-in, absentee, and early voting.

Despite numerous investigations and lawsuits challenging the legitimacy of the 2020 election, no evidence of widespread fraud has been found.