Clay Aiken's bus breaks down after stop at the polls on Election Day

CARY, NC -- Clay Aiken, who is challenging North Carolina's 2nd Congressional District incumbent Republican Renee Ellmers for her seat, experienced a break down on Election Day.

Authorities in Cary had to assist Aiken's tour bus Tuesday morning after it came to a stop along Walnut Street and Donaldson Court.

It is unclear what caused the large vehicle to stall out just before 9 a.m. -- moments after Aiken cast his vote at a Cary polling site.

Aiken's showdown with Congresswoman Ellmers is one of the highest profile races in North Carolina. Most political experts seem to think Ellmers is a safe bet to hold onto her seat, however, Aiken's celebrity and financial-backing has made the race much more competitive.