MILWAUKEE -

Milwaukee Mayor Tom Barrett expects to win re-election Tuesday to another four-year term but his attention is already on a bigger prize.

Barrett ended weeks of speculation by announcing Friday that he will run in the recall election of Republican Gov. Scott Walker. The Democrat hit the campaign trail immediately over the weekend, leaving Milwaukee to campaign in Wausau and Racine.

Barrett announced he was getting into the recall just four days before the mayoral election. It came after his opponent, University of Wisconsin Extension faculty member Edward McDonald, prodded him to let voters know his intentions before the vote.

Barrett has proven popular with Milwaukee voters since first being elected mayor in 2004, and he has not gotten much serious opposition from McDonald, a longtime community activist.