EMPORIA, Kan. (AP) — Tea Party challenger Milton Wolfe confronted U.S. Senator Pat Roberts as he campaigned in downtown Emporia.

Their brief meeting Wednesday took place at an intersection as Roberts walked from business to business to talk with merchants. The two are squaring off in Tuesday’s Republican primary.

Wolfe told Roberts he wanted the senator to keep his promise to debate him. Roberts says he has no plans to debate Wolfe.

At their meeting on the street, Roberts told Wolfe it was not the time for the discussion and walked away as a small group of journalists and Wolfe supporters watched.

A Wolfe supporter shouted at Roberts, “If you can’t face Milton Wolfe, how can you face Obama?”