The Establishment wants Rubio.
Rubio inherits establishment support but is on a narrow path to stop Trump
https://www.washingtonpost.com/politics/rubio-inherits-establishment-support-but-is-on-a-narrow-path-to-stop-trump/2016/02/22/0e076de4-d969-11e5-81ae-7491b9b9e7df_story.html
If all that support couldn’t help an experienced governor, how is it going to help a baby-faced senator with hints of scandal swirling around him?