Obama's Stem Cell Spinning September 30, 2008 His radio ad is wrong: McCain still supports federal funding for stem cell research.

Not Coming Clean on Coal September 30, 2008 A McCain-Palin ad claims the Obama-Biden ticket opposes clean coal. Not true.

FactChecking Debate No. 1 September 27, 2008 Facts muddled in Mississippi McCain-Obama meeting.

Obama's Trade Trickery September 26, 2008 An Obama ad implies that a Pennsylvania plant sent jobs overseas and says that McCain is to blame. That's wrong.

The Whoppers of 2008 September 25, 2008 Where McCain and Obama have misled voters. A partial tally.

Call of the Wild September 24, 2008 A wildlife group's ad attacks Palin for supporting the shooting of wolves from airplanes. She does, but there's more to it than that.

Keeping Quiet? September 24, 2008 A McCain-Palin ad claims Obama has been "mum" on the economic crisis. That's false.

'Born Alive' Baloney September 24, 2008 An abortion survivor claims she would have died if Obama had his way. She's wrong. But Obama's counterattack misfires too.

Guilt and Associations September 23, 2008 McCain once again tries to tar Obama with the controversies of others.

NRA Targets Obama September 22, 2008 It falsely claims in mailers and TV ads that Obama plans to ban handguns, hunting ammo and use of a gun for home defense.

Out of Context on Health Care September 22, 2008 Obama ad twists McCain's words on health care "deregulation."

Obama's Social Security Whopper September 20, 2008 He tells Social Security recipients their money would now be in the stock market under McCain's plan. False.

Scaring Seniors September 19, 2008 An Obama-Biden ad says McCain supports "cutting benefits in half" for Social Security recipients. False!

Sparring in Spanish September 19, 2008 A Spanish-language ad from Obama calls McCain a friend of Rush Limbaugh and says Limbaugh called Mexicans "stupid." A McCain ad in Spanish misrepresents Obama's role on immigration legislation.

There He Goes Again September 18, 2008 McCain ad misrepresents Obama's tax plan. Again.

Stretching with Biden September 18, 2008 Obama's running mate gives a twist to McCain's words while stumping in Michigan.

Corsi's Dull Hatchet September 15, 2008 Jerome Corsi's "The Obama Nation" is a mishmash of unsupported conjecture, half-truths, logical fallacies and outright falsehoods.

Energetically Wrong September 12, 2008 Palin says Alaska supplies 20 percent of U.S. energy. Not true. Not even close.

Belittling Palin? September 11, 2008 A McCain-Palin TV ad accuses Obama of being "disrespectful" of Palin, but it distorts quotes to make the case.

School Funding Misleads September 11, 2008 An Obama ad plays fast and loose with McCain's voting record on education and proposals as a presidential candidate.

Off Base on Sex Ed September 10, 2008 A McCain campaign ad claims Obama's "one accomplishment" was a bill to teach sex ed to kindergarten kids. Don't believe it.

McCain-Palin Distorts Our Finding September 10, 2008 Those attacks on Palin that we debunked didn't come from Obama.

Sliming Palin September 8, 2008 False Internet claims and rumors fly about McCain's running mate.

FactChecking McCain September 5, 2008 He made some flubs in accepting the nomination.

GOP Convention Spin, Part II September 4, 2008 Palin trips up on her facts, and Giuliani and Huckabee have their own stumbles on Night 3 of the Republican confab.

Maverick Misleads September 4, 2008 A McCain ad comparing Palin to Obama isn't all above board.

GOP Convention Spin September 3, 2008 Lieberman and Thompson make misleading claims about Obama on Day Two of the party in St. Paul.

Hit the Brakes September 3, 2008 An Obama ad running in Michigan claims McCain didn't support loan guarantees for the auto industry. In fact, he does support them.

A New Stitch in a Bad Pattern September 2, 2008 A McCain ad wrongly claims Obama plans "painful tax increases" for working families. And who's talking about deficits?