Schock resigned in March after mounting scrutiny of his spending, including redecorating his office in the style of the estate in the television show "Downton Abbey.''

Anyone who forgot to register to vote beforehand will be able to do it that day. That's thanks to a law that was intended to be in place for the first time for next year's elections. McLean County Clerk Kathy Michael and others had asked legislators to delay the law until then. It never happened.

The son of Ray LaHood, Schock's predecessor in the 18th District U.S. House seat, says he'll campaign on his state Senate record, including ethics reform.

Republican Illinois Congressman Aaron Schock says he's resigning his House seat amid questions about his spending. In a statement on Tuesday, Schock said he would step down effective March 31. A special election will be held to name his replacement.