A new Marquette University poll has some bad news for Wisconsin Gov. Scott Walker (R).

The poll, released Thursday, found Walker’s approval rating among registered voters at 41 percent while 56 percent said they disapproved of the job he’s been doing. In October 2014, 49 percent said they approved of Walker’s job performance while 47 percent said they disapproved.

Walker, who has taken serious steps toward running for president in 2016, generally polls at the front or near the front of surveys of likely Republican primary candidates. But he trails in a head-to-head with former Secretary of State Hillary Clinton, who’s running for the Democratic nomination for president.

The poll found that in a head-to-head match-up, 52 percent of Wisconsinites surveyed said they would support Clinton, while 40 percent said they would support Walker.

Charles Franklin, who conducts the Marquette poll, told TPM Walker’s approval numbers in the new poll were “by far” the lowest they had been for him since 2012.

Franklin also sent TPM the following chart of the Marquette University poll’s findings of Walker’s approval over the years:

Meanwhile, the poll also had bad news for Sen. Ron Johnson (R-WI), who’s

likely to face a strong challenge from former Sen. Russ Feingold (D-WI), who previously held Johnson’s seat. The poll found Feingold beating Johnson by double digits in a rematch. The poll found 54 percent said they would support Feingold while 38 percent said they would support Johnson.

The poll was conducted among 803 registered Wisconsin voters between April 7 and April 10. It had a margin of error of plus or minus 3.5 percent for the full sample.

This post was updated.