Rubio is the GOPe’s current “fart in a whirlwind.” It must be truly awful for the eletes to sit around their smoke-filled room each day and try to figure out how to get one of their nags to run! And the good thing is that their “nags” are dying off.
Rubio is the first establishment, the others were all outsiders to an extent like Trump, so he’ll be more durable, or so I suspect.