WASHINGTON _ Donald Trump's endorsees can't stop winning.
From Staten Island to South Carolina, Alabama to Athens, Ga., Republicans blessed with the president's endorsement in primary contests this summer have notched victory after victory_proof that even when he's not on the ballot, Trump can persuade and turn out his base, a reality with significant implications for this fall's midterm campaigns.
When it comes to moving Republican votes, said veteran GOP pollster Whit Ayres, a Trump endorsement is "determinative."