Will Trump Start Spending Money On His Campaign Now?

So far, Donald Trump's been holding his cash, but if he starts to spend now, will he change the scope of the race?  I'd imagine Trump wants to sink Marco Rubio once and for all ASAPy-like.  Mistress rumors, anyone?  Whether or not Trump over-performed or embarrassed himself in Iowa, he's either all-in or he won't last through February.  But what does an all-in Trump look like to the rest of the candidates and the Republican establishment?  Nothing good.  While Trump unbound looks like pure, unadulterated, high-calorie funfetti to the like of us, to the Koch Brothers and their ilk, that is one scary fucking monster.  Let's pray to jesus and all the gods that we get to see that shit.