Rubio is a lying, opportunistic weasel.
For some reason, Limbaugh’s lips have been glued to Rube’s backside for years.
Might be a Florida thing. Rush has been doing his show from his Palm Beach, Florida studio (southern command) almost exclusively since the late 1990's and probably befriended Rubio around the same time as Rubio made his climb in Florida politics.
The main problem I have with Rush is that he has become "friends" with so many GOP power players/major candidates that he is afraid to speak out against them for fear of alienating them rather than rightly call them out BY NAME when they screw us over.