Trump threatens a third-party run. (The Hill)
Pres. Obama makes his first trip to his father's homeland as President. (AP)
President Obama's trip to Kenya sets off gay rights debate in Africa. (New York Times)
Details of Chattanooga shooting emerge: 3-5 minutes of terror. (The Tennessean)
Sheriff: Sandra Bland told Texas jailer of prior suicide attempt. (AP)
Ted Cruz's thoughts on Star Trek captains, Tony Stark, and Spider-Man. (New York Times)
Defense Secretary Ash Carter makes a surprise trip to Baghdad. (AP)
What are you reading this morning? Let us know in the comments, please.