The problem with accomplishing the impossible is that it leaves the impression doing so can be routine. In that mind-set may rest the question of whether Donald Trump has a shot at the presidency.

Give the man credit: He broke every law of political physics and still won the primary. He rambled; he barely spent a dime on TV; he skipped entire states; he ignored delegate math; his focus group was himself. An entire generation of political consultants is debating checking in to a psych ward.

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