Barack Obama knows Colorado's new senator better than most state voters do.

DENVER - Barack Obama knows Colorado's new senator better than most state voters do. Denver Public Schools Superintendent Michael Bennet, the man tapped to replace Sen. Ken Salazar, is a mystery to many voters ? but not to President-elect Obama, who received a $4,600 political contribution from him.

By KRISTEN WYATT DENVER ? A lawyer who has turned successively to the worlds of business and education, Denver Public Schools Superintendent Michael Bennet won?t have much trouble adjusting to the biggest promotion of his life: to U.S. senator. That?s what colleagues are saying about the Yale-educated lawyer, who...