The latest NBC News/Survey Monkey national poll finds Donald Trump leads the GOP presidential field with 40% — a new high. He’s followed by Marco Rubio at 21%, Ted Cruz at 18%, Ben Carson at 8% and John Kasich at 7%.
In head-to-head match ups, Trump would beat Rubio, 52% to 46%, and top Cruz, 55% to 42%.
In the Democratic race, Hillary Clinton leads Bernie Sanders, 51% to 41%.

