Wisconsin Gov. Scott Walker has a 9-point lead over Donald Trump among likely Iowa GOP caucus participants, a new Monmouth University poll shows.

The poll, released on Monday, has Walker with support form 22 percent of those polled, while Trump is at 13 percent.

It also shows that Trump avoided any collateral damage in the polls after he criticized Sen. John McCain over the weekend, even as the sentiment toward Trump swung into the negative on social media.

The poll was conducted from Thursday through Sunday; according to Monmouth, Trump polled at 13 percent on Thursday and Friday, and also polled at 13 percent on Saturday and Sunday after he made the controversial McCain comments.

Ben Carson (8 percent), Jeb Bush (7 percent) and Texas Sen. Ted Cruz (7 percent) round out the top five in the poll.

“Walker has been a favorite of Iowa voters ever since his well-received appearance at the Iowa Freedom Summit in January,” said Patrick Murray, director of the Monmouth University Polling Institute. “More recently, Trump has outmaneuvered the rest of the field to earn the seconds pot despite his controversial statements over the weekend.”

Walker’s 9-point lead is a slight increase from a Quinnipiac University poll earlier this month where he had an 8-point lead over both Trump and Ben Carson in Iowa.

The Monmouth poll, conducted among 452 likely Iowa voters and has a margin of error of +/- 4.6 percent.