The rumor is Rubio is doing very well in internal polling and Cruz has started advertising against him. Rubio is popular with undecideds that may go to him Monday. The Rubio team thinks there is a distinct possibility he could surge to 2nd place and push Cruz to 3rd.
That would of course scramble the whole board. It effectively kills Cruz’s campaign and makes it a 2 man race between Trump and Rubio.
I don’t want Rubio anywhere near 2nd
Iowa could very well end up Trump, Rubio, Cruz which would effectively be the end of Cruz. If he does place one or two its over.
After last night, Cruz and Rubio will lose votes to Huckabee and Santorum in Iowa. They not only showed up to support Trump but he gave them time on the stage. JMO