Jess Henig

Hacked e-mails show climate scientists in a bad light but don't change scientific consensus on global warming.

Claims that the swine flu vaccine is dangerous range from overblown to false.

He says the uninsured cost the rest of U.S. families $1,000 a year.

Roll out the red carpet! We bring you some noteworthy ads of the 2008 election season.

Sorting out fact and fiction in the presidential candidates' final debate.

An abortion survivor claims she would have died if Obama had his way. She's wrong. But Obama's counterattack misfires too.

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.

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

The facts about Obama's votes against 'Born Alive' bills in Illinois.

The truth about Obama's birth certificate.

Mitch McConnell's ad casts his Senate challenger as a villain behind high fuel prices, a big exaggeration.

There's more urban legend than fact in a Planned Parenthood ad attacking McCain.

His first ad of the post-primary season puffs up his legislative accomplishments

He claims that a shift to electronic medical records will help save families up to $2,500 a year in his first term. Independent experts say that's wishful thinking.

Debunking a bogus claim about Clinton's legislative record.

Obama and Clinton ads both claim all Americans would be covered by their health plans. Clinton's would come close.

Obama mailer on Clinton health care plan lacks context.

McCain's ad revisits some oft-mentioned examples of pork, but is he really the one who rooted them out?

Giuliani stubbornly repeats a claim about prostate cancer that authorities call "very misleading" and "complete nonsense."