He’s on the road again and he’s gonna have a gouda time.

Mayor Bill de Blasio is traveling to Wisconsin on Friday to campaign for Democratic congressional hopeful Randy Bryce.

De Blasio’s excursion will be funded by his new federal political action committee, Fairness PAC, according to a spokesman.

The mayor co-hosted a fundraiser in New York City in March for Bryce — aka “IronStache” — whose campaign is being run by de Blasio’s 2013 campaign manager, Bill Hyers.

Bryce is running for the seat currently held by retiring House Speaker Paul Ryan.

Ryan’s former aide, Bryan Steil, is the Republican nominee.

De Blasio has ties to the Badger State through his press secretary, Eric Phillips, and former press secretary Phil Walzak — both of whom hail from the land of milk and dairy.

The mayor traveled to Milwaukee in April 2015 to deliver a keynote speech for the Democratic Party.

In September 2016, he and his wife, Chirlane McCray, stumped in Wisconsin for presidential nominee Hillary Clinton.

McCray will not be traveling with her hubby this time, officials said.

The mayor is scheduled to return to New York City on Saturday.