Looking to Donald Trump`s immigration speech can he hang onto his base if he softens his stance on the issue that got him this far?

This is a terrible year [2015] in a lot of ways. You have Paris. You have San Bernardino. But there was, if you remember the summer, there was that attempted terror attack on the train in France. There were two U.S. Marines, there`s one other guy. They were three guys who got up and who stopped that attack. Nobody died. They are heroes and they are my people of the year, three of them.

He [Donald Trump] found that sweet spot in the Republican Party, just politically, where you had the rest of the party saying it`s just impractical. You can`t deport 11 million people. You can`t round them up and deport them, and his position was basically, hey, Republican voters. Don`t listen them, you can and I will.

Donald Trump, I guess one idea here if he`s flip flopping, has he bought himself cover with his base by all the inflammatory thing he`s said over the last year? But the flip side is, all of those inflammatory things, the voters he`s trying to reach by flip flopping, are they tuned out to him because of that?

There was a change in tone in terms of the [Donald] Trump who showed up in Mexico City for this press conference.

Immigration has been [Donald] Trump`s signature issue throughout his entire presidential campaign, and his supporters love him for it.

On the campaign trail, [Donald] Trump has threatened a trade war and repeatedly said that Mexico will pay for a wall on the Southern border.