There’s the Donald Trump who has spent months disparaging Mexicans, vowing to deport all 11 million or so undocumented immigrants and promising to strong-arm Mexico into paying for an impenetrable border wall. Then there’s the Donald Trump who was almost statesmanlike in a joint press conference Wednesday with Mexico’s president, stressing shared trade and security interests and praising the contributions of “spectacular, hardworking” Mexican-Americans. Which are we to believe? Which would be president?