Flint mayor thankful after federal emergency declaration by President Obama. (Flint Journal)
Debate takeaways: gloves come off between Clinton, Sanders. (AP)
Donald Trump gets personal in attacks on Ted Cruz at Tea Party convention. (New York Times)
The 14 testy months behind the prisoner swap with Iran. (New York Times)
Iraqi forces deploy in Baghdad neighborhood after reported kidnapping of three Americans. (AP)
12 missing Marines identified as search continues off Hawaii. (Marine Corps Times)
SpaceX rocket didn't quite stick its barge landing. (Gizmodo)
What are you reading this morning? Let us know in the comments, please.