He wasn't speaking to the issue of the 14th amendment, he was speaking to Trump's overall surge based on a populist and nationalist message and how that is playing well because of the current political climate even though it isn't the answer to what ails us.
And yes, deporting 20 million people isn't feasible and mostly fear mongering rhetoric that would be impractical to truly implement.
And yes, deporting 20 million people isn't feasible and mostly fear mongering rhetoric that would be impractical to truly implement.