Gov. Scott Walker’s approval rating fell to 43% in a statewide survey released Wednesday by Public Policy Polling, down slightly from where it was in a late February poll by the same firm.

In the survey of 1,636 Wisconsin voters taken May 19-22, 43% approved of Walker’s performance and 54% disapproved.

PPP last polled on Walker Feb. 24-27, in the early weeks of the fight over collective bargaining.

In that survey, 46% approved and 52% disapproved of Walker.

In the earlier February poll, Wisconsin voters were evenly divided 48% to 48% over whether Walker should be recalled or not.

In the new poll, 50% favored recalling Walker and 47% were opposed. The firm also polled on hypothetical recall election matchups, with former Democratic Sen. Russ Feingold leading Walker 52% to 42% in one matchup and Milwaukee Mayor Tom Barrett leading Walker 50% to 43% in another.

You can find the full results and the firm’s own analysis here.

Public Policy Polling is a North Carolina-based firm with a Democratic history and client list, though its 2010 election polls in Wisconsin did not appear to favor Democrats (they showed Republicans leading the contests for Senate and governor by bigger spreads than their eventual victory margins).

The firm said it did this poll for no client. PPP's polls use automated phone interviews. The margin of error in this poll is plus or minus 2.4 percentage points.