The nation's largest seniors lobby, fresh off a successful push to enact health care legislation, is jumping into the fray over financial regulatory reform today with a new television ad campaign.

The AARP ad, which the group is calling a "sing-a-long," is running in 12 states, including several battlegrounds for the November election, such as Arkansas, Indiana and Ohio. The spot will air through May 2.

"We know now that older Americans lost billions of hard earned dollars due to the failure of an outdated and compromised financial regulatory system," Nancy LeaMond, executive vice president at AARP, said in statement. "We strongly believe that any bill the Senate passes should protect the rights of consumers first and foremost."

AARP backed President Obama's health care legislation, which was signed into law last month, and wound up losing tens of thousands of members who were opposed to the measure. The financial bill, which is headed to the Senate floor later this week, has sparked similar unanimous GOP opposition so far.

The group is not disclosing how much was spent on the campaign.

Here's the ad:

(Posted by John Fritze)