Rep. Howard Nielson, R-Utah, continues to say publicly he doesn't expect a challenge from within his own party, but a former Nielson aide says he hasn't eliminated the possibility he will run for the seat.

Bill Arseneau, a prominent Republican from Provo, has refused to rule out the possibility of challenging his old boss for the 3rd District seat."I'm not prepared to say anything right now," he said, "but I want to be up front about this. I'm certainly looking at it."

Nielson, who is expected to retire after another term in office, said an intraparty battle would be a heavy political burden for any challenger to carry into future campaigns.