Watch the ad here:

This ad uses the AARP and its voter guide talking about "facts" as if they are opinions. The AARP had nothing to do with this ad approved by President Obama.

CLAIM: The new AARP voter guide is out Barack Obama will protect your guaranteed benefits and will not allow Medicare to become a voucher program.

This is a statement of opinion. We explained in a previous Truth Test on Medicare neither campaign would cut Medicare benefits. Both want to control how much money Medicare costs.

CLAIM: Mitt Romney would take away Medicare's guaranteed benefits and instead give future retirees "premium support," or vouchers.

This statement is false. It's true Romney wants future retirees to have the option of choosing between premium support vouchers or traditional Medicare plans. Romney does not plan to "take away" Medicare's guaranteed benefits.

CLAIM: The AARP opposes Romney's voucher plan.

9NEWS labels this statement as misleading. This claim comes from a letter AARP's Chief Executive Officer Barry Rand sent to members of Congress. The letter says private options could lead to higher costs for seniors, but the AARP made no direct statement about Romney's plan.

In addition, after the Obama campaign referenced Rand's letter as support for one of its ads, AARP Senior Vice President John Hishta clarified, "We were not aware of nor have any involvement with this campaign ad. AARP is a nonpartisan organization, and we do not endorse political candidates."

CLAIM: "And nonpartisan analysts say it could raise seniors' costs up to $6,400 a year."

The claim it could raise costs for seniors is only half-true. Politifact notes it's based on outdated research and is unproven for Romney's current plan.

The bottom line? This ad is misleading. AARP is a nonpartisan institution which does not endorse either candidate.

TRUTH TEST: Mitt Romney's new ad on President Barack Obama's over-regulation