Donald Trump's Birther strategy

“There’s a very clear niche in the Republican primary,” said longtime political consultant Roger Stone. “It’s a brilliant base-building move. There’s a very active, fervent subset of voters interested in this.” Stone, who has worked for Trump in years past, says he has no paid role in Trump’s current campaign, though he does allow that the two continue to “talk politics from time to time.”

Republican pollster John McLaughlin agrees that Trump’s remarks may be part of a larger, and potentially effective, campaign strategy. “Just like Obama won the nomination as the most anti-Bush candidate, the Republican nomination is going to be won by the most anti-Obama candidate,” McLaughlin said. “He’s positioning himself to be the most aggressive candidate against Obama. If you want to win a primary that’s the way you win a primary.”