Dallas-area Democrats are demanding that Republican Texas Attorney General Ken Paxton be investigated for illegal voting after ProPublica and The Texas Tribune revealed that he has repeatedly voted while registered at an address where he appears to no longer live.

In a complaint filed Tuesday, the Collin County Democratic Party asked the Texas secretary of state to investigate whether Paxton committed election fraud by voting in the May primary runoff.

Paxton beat longtime incumbent John Cornyn in that race, securing the Republican Party's nomination for U.S. Senate.