From Trump to Bush: Where The 5th GOP Debate Can Take Us

Matthew Dowd and LZ Granderson preview the final GOP debate of 2015.

Rubio Needs to ImpressLike Cruz, Rubio is a first-term senator, a young upshot on the rise who vying for the nomination. But both Dowd and Granderson think Rubio is under some pressure to gain momentum, but speaks like a classic politician, putting him at a disadvantage in an election cycle where voters are leaning heavily towards anti-establishment candidates.