Republican Rubio says will decide on White House bid in 'due time'

By Amanda Becker WASHINGTON (Reuters) - Republican U.S. Senator Marco Rubio said on Wednesday he was still weighing whether to run for president or put his focus on his Senate re-election campaign. Rubio, a Florida senator, is part of a crowded field of potential Republican 2016 contenders, including former Florida Governor Jeb Bush, New Jersey Governor Chris Christie and two- time presidential candidate Mitt Romney, a former governor of Massachusetts. Bush, son of former President George H.W. B