The president jumps the shark with his latest claim on the controversial project.
Here are the facts behind the president's shocking claim.
We fact check various remarks on vaccinations by politicians, including Obama's controversial remarks in 2008.
Obama challenges Congress to try living on $15,000 a year or raise the minimum wage. But the issue is much more complex.
The Obama administration claims 650,000 jobs will be created from an Asian trade deal. The correct answer is zero.
President Obama made a quick reference to a complex topic during the State of the Union. But what he left out is just as important.
President Obama earns Three Pinocchios for using words on the Iran talks that have little basis in fact.
What were President Obama's most fact-challenged statements in the State of the Union address?
Here's our annual look at what happened to the proposals made in last year's State of the Union address.
President Obama highlights how few executive orders he has issued. But is that the whole story?