Mitt Romney got the next best thing Friday to an endorsement from U.S. Sen. Pat Toomey, he got validation. "I think Mitt Romney is a conservative and if he's president, he'll govern as a conservative," Toomey, R-Pa., told reporters after a speech to the Pennsylvania Leadership Conference, the annual gathering of conservatives in the state. Toomey made his mark in Washington hunting down and replacing Republican moderates in Congress with Republican conservatives as president of Club for Growth, a powerful anti-tax group. A tea party kingmaker, U.S. Sen. Jim DeMint, R-S.C., also affirmed Romney's conservatism after meeting with him Thursday...