Now his party's nominee, Obama touts love of country in his new ad. It gets his points on taxes and welfare largely right. A third claim on veterans health benefits is less clear.
To mark our 500th Truth-O-Meter ruling, PolitiFact staffers name their favorites.
We take apart popular notions on foreign debt and oil imports. Economists say the relationship is complicated.
McCain cites today's high gas prices in his pitch for more offshore drilling. But even experts who support the drilling say it won't reduce prices any time soon.
McCain and other Republicans cite a National Journal rating to claim that Obama is the Senate's No. 1 liberal. But other measurements tell a different story.
For months we've been asking for a birth certificate to sort out rumors about Obama's real name. Confirmed by the state of Hawaii, here it is.
Taxes are scheduled to go up in 2011 when the Bush tax cuts expire. If the next president lets that happen, is he raising taxes?
Anonymous e-mailers make hay, getting quotes wrong or out of context. We give you the skinny in case Dreams from My Father isn't in your beach bag.
This week, PolitiFact is featured on NewsTrust, a Web site that allows you to rate news coverage.
Sen. John McCain is a staunch proponent of nuclear power, saying it's key to reducing America's dependence on foreign oil and fossil fuels.
Fidel Castro tempered his criticism of Sen. Barack Obama with a few kind words, which thrilled Florida Republicans a bit too much.
An unpopular president and two candidates from the Senate create a host of strange-bedfellow problems in this presidential race.