Democrat Barrett rematch with Wisconsin Governor Walker from Reuters: Politics MILWAUKEE (Reuters) - Milwaukee Mayor Tom Barrett announced on Friday his candidacy for the Democratic nomination to challenge Wisconsin Republican Governor Scott Walker in a recall election, setting up a possible rematch of the 2010 election. feeds.reuters.com/~r/Reuters/PoliticsNews/~3/zbPHlGBA7gI/us-wisconsin-barrett-idUSBRE82T1EJ20120330