Would Donald Trump’s proposed ban on Muslims in the US be constitutional?

Leti Volpp interviewed by Yahoo!, Dec. 8, 2015

Leti Volpp … agreed that there is no way that categorically barring Muslims from entering the country could be legal. … “Citizens have a right to enter the country of their citizenship. In terms of noncitizens, while the political branches are given some deference in crafting exclusion laws, that deference is not absolute, and this would violate the Constitution’s guarantee of equal protection, not to mention the guarantee of freedom of religion.”