ATLANTA (AP) — In his final TV ad, Republican David Perdue is arguing Georgia's tight race for Senate comes down to a matter of trust.

The ad asks voters whether they feel President Barack Obama and Perdue's Democratic opponent Michelle Nunn can be trusted to tackle the debt, create jobs and keep the nation safe. Perdue then appears on screen, asking for their trust and their vote if they "believe we can do better."

Georgia has become a key battleground in the fight for control of the Senate. Polls suggest a tight race that could extend to a Jan. 6 runoff. The Associated Press was given a preview of the ad Thursday.

Perdue spokeswoman Megan Whittemore says "Georgians don't trust Washington" and that Perdue will work to "solve problems families face every day."