Violence in Iraq is going to bring the status of the nation back into the spotlight during the presidential race. Here's a look at some of the hot political stories for today.
Violence in Iraq
Three separate car bombings in the Iraqi capital Wednesday killed at least 93 people and wounded at least 165.
The Islamic State group later claimed responsibility for all three bombings. In recent months, the extremist faction has lost some of the Iraqi territory it conquered in a stunning 2014 blitz. But Wednesday's carnage demonstrates the group's lingering ability to launch significant attacks across the country and in the heart of the capital. More details and new developments
Sanders, Trump win primaries
Meanwhile, Republican Donald Trump also won there and in Nebraska, a week after he cleared the field of his remaining rivals. They were not victories likely to heal the party's wounds, as some GOP leaders continue to hold off offering their endorsement of the party's presumptive nominee. Get more election details here
Tight U.S. Senate race