Unstoppable Trump?

Presidential candidate Donald Trump reiterated his melange of talking points at the beginning of last night’s Republican debate. His opponents went into feeding frenzy mode pretty much right after that. This morning, the headlines spoke: “Rubio, Cruz tag-team Trump at fiery GOP debate,” “Rivals gang up on Donald Trump in wildest GOP debate yet,” “Rubio finds his fire.”

The question many pundits had was, “What took so long?” But perhaps the bigger question is, does it even matter? At this point, is Donald Trump unstoppable?