Is the white vote returning to American politics? Four recent national polls all confirm what is likely to be the galvanizing force of the GOP presidential primary season at least through next spring and what is almost certainly behind Donald Trump's "Make America Great Again" surge: an effort to bring disaffected white voters back to voting booths. Nearly every political and social scientist in America has predicted for years that demographics are shifting inexorably against the Republican Party nationally -- that growing numbers of Hispanic and Millennial voters will join black voters in keeping the GOP from capturing the White...