As reported at the NY Times:

With help from an allied group that is airing television ads in Iowa, Mr. Rubio is seeking to raise doubts on the right about Mr. Cruz’s toughness on national security — a potentially fatal vulnerability, should Mr. Rubio succeed, amid heightened concerns about terrorism. More quietly, he is trying to muddy the perception that Mr. Cruz is a hard-liner on immigration, asserting that Mr. Cruz supports “legalizing people that are in this country illegally.”

That’s great for Trump! The biggest threat to Trump is that Cruz wins in Iowa and becomes a major pain in the ass. Rubio’s ads are attacking Cruz where he is weakest and helps to ensure Trump wins Iowa, which means that Trump will easily win the nomination, probably winning every single state, before anyone realizes what happened.

But why would Rubio help Trump? Isn’t he part of the establishment? Doesn’t the establishment hate Trump?

Rubio is no doubt still holding onto the idea that Trump will magically disappear and therefore he needs to defeat Cruz in order to be the guy who benefits from Trump’s magical disappearance.

Another question you might ask is, that if Rubio and Cruz both hate Trump so much, why don’t they join forces, with one dropping out and the other throwing him his support? Well that is never going to happen. Cruz is not going to drop out because he’s not a team player. He’s running to be Trump’s vice president or to be the nominee in 2020. He doesn’t actually hate Trump that much and doesn’t care if Trump wins. And the establishment won’t let Rubio drop out because they hate Cruz almost as much as they hate Trump.

What’s far more likely to be going on right now behind the scenes is that the establishment is desperately trying to convince Jeb!, Kasich and Christie to drop out and support Rubio. Why would those guys do that? Because Jeb! is a good team player and will avoid the embarrassment of losing with less than 5% of the vote. Kasich will do it because he hates Trump and knows he has no chance of winning the election anyway. And Christie will do it because they will promise him the vice president nomination so long as they don’t have to offer it to Cruz in the case of a brokered convention.

My prediction, however, is that if Trump wins Iowa, this will boost his support in New Hampshire where he is already polling much higher than in Iowa. And if he wins in both Iowa and New Hampshire then voters in subsequent primaries will jump onto the Trump bandwagon. He will win every single state and be the presumptive nominee far sooner than anyone is predicting. These fantasies about a brokered convention are just fantasies; it’s not going to happen.

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On the other hand a reader just supplied a link which purports that the MSM and Bush’s campaign have serious dirt on Rubio regarding extramarital affairs. However, don’t believe everything you read on the internet. At least half of it is bogus.