The announcement [made on Twitter] means Mr. Obama will become the first presidential candidate to not vote in-person on election day, according to his campaign.

“Hey, @BarackObama, I just dropped my absentee ballot in the mail,” wrote Mrs. Obama. “I couldn’t wait for Election Day! Love you!” She signed the message with “-mo” indicating that it was personally posted to the account by her.

The first lady included an image of herself holding the sealed, post-marked absentee ballot to be returned to the Illinois Board of Election Commissioners.

The president tweeted shortly after that he would also be balloting early, but on a visit to Chicago later this month.

“I’m following @MichelleObama’s example and voting early, on October 25,” he posted to the @BarackObama Twitter profile, signed “-bo.” “If your state has early voting, join me."