Senator ted cruz will be standing right next to him, that is a first for ted cruz. Neurosurgeon ben carson left of trump, new Jersey Governor Chris Christie will be back in the time time debate, he was in the undercard last time around. Also on the main stage, john kasich, jill carroll, marco rubio and rand paul. George pataki, Mike Huckabee and Rick Santorum and senator Lindsey Graham of South Carolina at the 6 00 debate. One night tuesday here at the venetian. Joining me david shallian, cnn politics executive editor mark preston and ron brownsteen. David, i start with you. We now know the lineup. We know who will be on that main stage, a lot of story lines. A lot of storylines but probably no story line more important than this is the first debate after paris, after San Bernardino. The Political Landscape has shifted since all of these folks gathered on their last debate stage so now this is an opportunity to present their plans, their vision as commander in chief, what it would be f