He can blame it on naivety or he can blame it on some of the more odious portions and claim he didn't know they were slipped into the bill.
Until such time, if any, that that happens, Rubio will remain dead to me.
He's gonna have to do, not say, something pretty terrific for me to change my mind about him. Mere talk & promises are insufficient.
My theory about pols like Rubio is that WDC is so complicated, so frenzied, so politically dangerous that new arrivals are overwhelmed, & therefore easily tricked into selling their souls; like a juggler with just too many balls in the air, or noise so loud you cannot think straight.
The only other explanation re. Rubio is that he is just another lying pol.
History is on the side of lying pol theory.