HUTCHINSON, Kan. (AP) —Kansas Republican Sen. Pat Roberts and independent challenger Greg Orman disagree about whether federally mandated background checks for gun sales should be expanded.

Orman said during their first debate Saturday at the Kansas State Fair that he supports reasonable restrictions on gun sales, particularly to ensure that background checks are done on buyers at gun shows.

But Orman says he owns two guns and supports the Second Amendment to the U.S. Constitution, protecting gun ownership rights.

Roberts mocked Orman for saying he supports Second Amendment rights while backing restrictions.

The senator says he won’t “mess with” anyone’s gun rights. He has the backing of the Kansas State Rifle Association.

But Orman says, “We don’t want people with bazookas. We don’t want people with automatic weapons.”

Orman also had what sounded like a good line in his first debate with Kansas Republican Sen. Pat Roberts, but the incumbent warded it off.

The two squared off Saturday at the Kansas State Fair in Hutchinson. One question touched on how Roberts owns a Washington-area home but claims rented space in the Dodge City home of supporters as his official residence.

Orman told Roberts that he suspected he’s been to Dodge City more times this year than Roberts has. Orman says he’s visited four times.

Roberts told Orman that he’s been to Dodge City “about seven times” this year.

The 45-year-old Orman then suggested he’s lived more of his adult life in Kansas than the 78-year-old Roberts. The senator noted he was born and educated in Kansas.