Bush, who’s lagging down in the polls and has been for months, has been replaced by Sen. Marco Rubio (R-FL)—his protege—and New Jersey Gov. Chris Christie as the new frontrunners in the establishment lane for the GOP nomination. Trump, meanwhile, has dominated polling GOP-wide for more than five months, and Sen. Ted Cruz (R-TX)—who’s leading in the conservative lane for the GOP nomination—is beating not just Bush but Rubio and Christie as well in most polling.