Sen. Marco Rubio’s (R-Fla.) political stock is rated a buy by major Republican fundraisers in Washington, who are bullish on Rubio’s future as a 2016 presidential candidate. A group of Republican fundraising heavyweights and wise men in Washington’s business community are solidly behind Rubio, and see him not only as someone who could win the White House, but someone they can work with. The fundraisers include Bill Paxon, a former New York lawmaker who is now a senior adviser at Akin Gump; Dirk Van Dongen, the president of the National Wholesalers Association; and Wayne Berman, a big-time donor with a...