In general, there's no easier time to defeat a sitting U.S. Senator than when he or she is seeking a second term.
Case in point: the work Republicans did to find a solid candidate to oppose Jeff Merkley's run for a second term in Oregon.
Surgeon Monica Wehby is the opposition candidate in one of this year's most visible political races.
Dr. Wehby joins us with the case for her first election to public office.
