[MaxistheBest]

http://www.politico.com/story/2016/03/how-many-delegates-do-2016-candidates-have-220484

Yup ... It’s Rubio plus 1

[Cboldt]

171 or 172, depending on the source. USAToady (typo intentional) and NBC say 172, Boston Herald and Politico say 171.

I think Rubio could shake things up just by rescinding his request to keep the delegates bound to him. I don't know what it would take to get him to do that.