Arlen specter

PHILADELPHIA - Joe Sestak had barely won the Democratic nod to run for U.S.

WASHINGTON - Party-switching Sen. Arlen Specter fell to a younger and far less experienced rival in the Pennsylvania Democratic primary, and political novice Rand Paul rode support from tea party activists to a Republican rout in Kentucky on Tuesday, the latest jolts to the political establishment in a tumultuous midterm election season.

PHILADELPHIA - U.S. Sen. Arlen Specter has been defeated in a Pennsylvania primary in his bid for a sixth term after taking the risky step of switching to the Democratic Party.

WASHINGTON - Political novice Rand Paul rode support from tea party activists to a rout in Kentucky's Republican Senate primary Tuesday night, jolting the GOP establishment.

YOUNGSTOWN, Ohio - Lumping Republicans together as the "just say no" crowd, President Barack Obama challenged his critics on Tuesday to explain why they oppose his steps to fix the economy.