Right to work has suddenly been thrust back into the news in Wisconsin. Here's a look at past factchecks on key issues in the debate.
All stories featuring Bill O'Reilly
When President Barack Obama said he had no plans to "fundamentally transform" the nation during a Super Bowl Sunday interview, that sent some viewers back to the archives to find a 2008 quote.
Fox News' Bill O'Reilly caught the attention of fact-checkers recently with claims about marijuana and communism.
We examine the federal government's alleged purchase of $16 muffins. It's Mostly False.
We fact-check the Fox News host's sit-down with the president.
Guess who decided not to pursue criminal civil rights charges on voter intimidation? The Bush administration.