Republican Sen. Roger Marshall and Democrat Adam Hamilton went head to head in a contentious debate Wednesday night as polls show a toss-up in ruby-red Kansas with less than two weeks until Election Day.

Marshall and Hamilton traded criticism and attacks over the Iran war, immigration enforcement, healthcare and tariff policy, as well as other controversies that have popped up during their unexpected battleground campaign.

Hamilton, a megachurch pastor and first-time candidate, presented himself as an “independent-minded Democrat.”

“I’m not somebody who favors the Socialist Party,” he said. “I’m somebody who stands in the middle. I’m going to try to work for all Kansans, Republicans, independents and Democrats.”

Marshall warned viewers not to buy it, repeatedly casting Hamilton as an ally of Senate Minority Leader Chuck Schumer, D-N.Y.…