WICHITA, Kan. (AP) — Democrat James Thompson criticized Republican Ron Estes over the GOP proposal to repeal and replacing President Barack Obama's signature health law during their first face-to-face encounter in the race to fill the House seat vacated by CIA Director Mike Pompeo.

Their contentious, interruption-filled forum in the heavily Republican district played out against the backdrop of Republican efforts in Washington, D.C., to repeal the nation's health care law and replace it with a proposal that a nonpartisan analysis group for Congress estimated would lead to 24 million people los...