Public Policy Polling, a Democratic firm that conducts surveys for the SEIU and the left-wing website Daily Kos, reports that its final poll shows Wisconsin governor Scott Walker leading Milwaukee mayor Tom Barrett 50 percent to 47 percent. PPP's poll is the only public poll conducted in the past week. The next most recent public poll, conducted by Marquette University from May 23 to May 26, showed Walker leading Barrett 52 percent to 45 percent. There hasn't been a single public poll of likely voters since May 1 that has shown Walker below 50 percent.
Update: "Walker has a 51/47 approval rating.... Barrett has a 46/46 favorability rating."