By Josh Hammer Newsweek senior editor-at-large and host, "The Josh Hammer Show" If one were dead set on dividing President Donald Trump's MAGA coalition at the seams, how would one proceed? Trying to drive a wedge through the immigration issue doesn't necessarily make sense: Tightening and securing America's borders is so core to the nationalist-populist MAGA project that there can be little room in the coalition for much dissent. Trying to divide MAGA along economic laissez-faire or populism lines is also doomed to fail: As important as pocketbook issues are to everyday Americans, the wonky details of fiscal policy generally...