If you didn't watch last night's Republican presidential debate, you missed a doozy. Senators Marco Rubio and Ted Cruz came out swinging like boxers on a mission, challenging Trump on everything from his reluctance to release his tax returns to lawsuits and his traditionally left-leaning views on abortion. At times it felt like a 2-on-1 affair. Unfortunately, Cruz and Rubio may have awoken from their slumber a tad too late. It's jarring that it took these men ten debates to finally stick it to Trump. The fact of the matter is that, like many political pundits, the candidates (with the exception of Jeb Bush, who recently exited the race) underestimated Trump. They figured he would fizzle out eventually, so they never took his candidacy seriously -- that is, until he started racking up victories in the primaries and caucuses. Now they're trying to do anything they can to slow his momentum, but polls have him with sizeable leads in many of the states up for grabs o...