A Marquette Law School poll presented Wednesday shows that Wisconsin Gov. Scott Walker’s approval rating dipped from 39 percent to 37 percent since he exited the presidential race on Sept. 21.

The Marquette Law School conducted this poll between Sept. 24 and 28, surveying 803 registered voters interviewed by cell phone and by landline.

The approval rating is a new low for Walker. More than 60 percent of those surveyed said they would not support him if he runs for a third term as governor in 2018, according to the poll. A quarter of voters originally in support of Walker are now backing the GOP frontrunner, Donald Trump.

With Walker officially out of the presidential race, Trump polls first among Wisconsin Republicans with 20 percent. Behind are retired neurosurgeon Ben Carson at 16 percent, Florida Sen. Marco Rubio at 14 percent, former Hewlett-Packard executive Carly Fiorina at 11 percent and former Florida Gov. Jeb Bush at 7 percent.

On the Democratic side, former U.S. Secretary of State Hillary Rodham Clinton leads by 42 percent, followed by Vermont Sen. Bernie Sanders at 30 percent and Vice President Joe Biden at 17 percent. Martin O’Malley is at 1 percent while Lincoln Chafee and Jim Webb are at less than 1 percent.