The debate over whether the president has kept unemployment in check plays out on airwaves.

Contested Senate races hit with ad onslaught by tea party-aligned FreedomWorks for America.

Obama's 'failing agenda' subject of new negative ad blast from big outside-spending nonprofit.

Billionaire-backed nonprofits press defense of coal industry with ads knocking president's policies.

Disclosure that a GOP candidate for California's state legislature shakes up local GOP, including House whip, Kevin McCarthy

Sarah Palin fades from public view while PAC still flush with cash.

Billionaire Koch brothers continue to shower free-market causes with tax-exempt gifts.

Americans for Prosperity slams the president's nonprofit in a new ad, yet the group doesn't plan on revealing its funders.

Fox News host's political giving benefits Republicans despite assertion he's not one.

Former presidential candidate blames some Republicans for Medicaid expansion.