NEW YORK — Barry Bonds, Roger Clemens and other tainted stars of the Steroids Era appear likely to get a boost in Hall of Fame balloting, but not enough to enter Cooperstown this year. Ken Griffey Jr. seems assured of election on the first try Wednesday, possibly with a record vote of close to 100 percent. Mike Piazza, Jeff Bagwell and Tim Raines also were strong candidates to gain the 75 percent needed for baseball's highest honor.