The candidates say they want to leave Social Security as it is for people who are already retired, or soon will be. But Marco Rubio and Ted Cruz have proposed changes for younger workers.
The Washington consensus on economic policy hasn't changed for decades: Economists and most political leaders say growth is tied to trade, immigration and technology. But now many workers disagree.
The Vermont independent senator is connecting Detroit's economic troubles with the Bill Clinton-passed 1990s trade agreement (and Hillary Clinton by proxy). How right is he?
"I will absolutely give my return, but I'm being audited now for two or three years, so I can't do it until the audit is finished, obviously," Donald Trump said this week.
President Obama wants to close the U.S. detention facility at Guantanamo Bay. If the prison closes, some have warned, the president would hand the base itself over to Cuba.
A top education analyst says the U.S. probably could get some more people through college by footing the bill, and it would probably pay for itself. But it isn't an open-and-shut case.
Ted Cruz said he doesn't consider waterboarding torture, and Donald Trump said he would bring back "worse" methods. We break down whether that would be an option under the law.