The Green Papers show Trump with 759 delegates and Cruz with 514. I think most newser (Trump haters ;-)) have not credited Trump with all of the Missouri delegates that he has won. I believe the MO Secretary of State has now certified their primary election count.
The delegate count is halfway down the webpage.
http://www.thegreenpapers.com/
Cruz is likely to be mathematically eliminated by the end of this month from getting to 1,237.
From getting to 1237 before the convention, that is. At the convention, he could get to 1237, if Trump has not gotten there either.