Singer Clay Aiken has made his bid for a seat in the U.S. Congress official by filing papers to formally announce his candidacy.

The former American Idol runner-up, a Democrat, recently declared plans to enter politics and run for the House of Representatives seat in North Carolina's second district, going up against two-term Republican Congresswoman Renee Ellmers.

The openly gay star lodged his paperwork at the State Board of Elections on Thursday (27Feb14) to ensure his name will appear on the ballot for the upcoming Democratic primary election on 6 May (14).

If he wins over his fellow party supporters, he will go up against Ellmers at the general election on 4 November (14).

He says, "I am comfortable with myself. I am comfortable with the campaign we're running. I am positive that people are going to vote for the person who they think will do the best job, who they think can win in November."

Other candidates have yet to be announced, but Friday (28Feb14) is the final day election applications will be accepted.