President-elect Trump has doubled down on his vow to end birthright citizenship, a task that would likely face legal challenges as well as skepticism from within his own party. For starters, the 14th Amendment grants citizenship to those born in the U.S. As a result, most legal experts think Trump wouldn’t be able to end the right through executive order, as he has suggested on the campaign trail and during a recent interview on “Meet the Press.”  Republicans including Florida Gov....