As a member of the controversial "Gang of Eight" working up comprehensive immigration reform three years ago, Florida Sen. Marco Rubio blocked bipartisan efforts to reform the worker visa program to make sure American workers get first dibs on jobs, according to a top Senate Democrat. At a hearing on H-1B worker visas Thursday, Sen. Richard Durbin of Illinois said that "a junior senator from Florida" fought to kill visa changes in the legislation that would have limited the ability of firms to replace American workers with cheaper foreign labor. "In 2013, I was part of the Gang of Eight....