Trump claims Justice Dept. sued to add "illegal voters" to the rolls in Virginia. Here's a fact check.

Former President Donald Trump claimed Monday that the Department of Justice was attempting to help Democrats "cheat" on the election by trying to add "illegal voters" to voter rolls in Virginia. 

"One of the Greatest Examples of DOJ Weaponization is the fact that they are suing Virginia to put ALL of the Illegal Voters, which were fully exposed and removed by the important work of Governor Glenn Youngkin, back on the Voter Rolls. Obviously, this was done so that they can CHEAT on the Election," Trump wrote on social media. 

But he and other Republicans mischaracterized a lawsuit filed by the Justice Department, CBS News' election law expert says.