"Birther" claims force GOP leaders to take a stand

WASHINGTON — It's the conspiracy theory that won't go away. And it's forcing Republican officials and presidential contenders to pick sides: Do they think Barack Obama was born outside the United States and disqualified to be president?

As the Republican candidates tiptoe through the mine field, Democrats are watching. They hope the debate will fire up their liberal base and perhaps tie the eventual GOP nominee to fringe beliefs that swing voters will reject.

In recent days several prominent Republicans have distanced themselves, with varying degrees of emphasis, from the false claim that...