WASHINGTON (CNN) -- Sen. Larry Craig said Saturday he will resign, succumbing to rapidly intensifying pressure from within his own Republican Party. "The people of Idaho deserve a senator who can devote 100 percent of his time and effort to the critical issues of our state and of our nation," said Craig, speaking under a clear blue sky at 10:30 a.m. (12:30 p.m. ET) outside the historic Boise Depot in Idaho's capital city. "Therefore it is with sadness and deep regret that I announce that it is my intent to resign from the Senate, effective September 30th." His announcement was...