NEW YORK — The biggest parlor game on Wall Street and in corporate boardrooms these days is guessing whether former Florida Gov. Jeb Bush will run for president and save the GOP’s old establishment base from its rising populist wing. The second most popular game is guessing what happens if Jeb says no. Two dozen interviews about the 2016 race with unaligned GOP donors, financial executives and their Washington lobbyists turned up a consistent — and unusual — consolation candidate if Bush demurs, New Jersey Gov. Chris Christie doesn’t recover politically and no other establishment favorite gets nominated: Hillary Clinton....
