Wolf Blitzer delivers the most important breaking news and political, international, and national security stories of the day. Tune to The Situation Room weekdays 5-7pm ET on CNN.
A new round of nuclear talks between Iran and the world's major powers has just begun in Vienna, but many already have low expectations that the meetings will be successful. CNN's Jim Sciutto reports.
There are new reports that the United States is considering a trade with the Taliban: five terror suspects for American soldier Bowe Bergdahl, who is being held captive. CNN's Barbara Starr reports.
In an interview with Wolf Blitzer, Newt Gingrich defends a series of tweets in which he called for Secretary of State John Kerry to resign from his post over his policy on climate change.