Harry Reid has a message for the Democratic candidates desperate to stop Bernie Sanders from winning the nomination. “If you don’t like what Bernie’s doing,” he told me, “speak up.”

With the Nevada caucus looming on Saturday, the retired Senate majority leader’s thoughts and advice are in high demand. When we spoke in his office at the Bellagio in Las Vegas last Thursday, a boom mic from a documentary film crew hovered overhead and his cell phone rang constantly. His recent suitors include most of the Democratic presidential candidates. Reid left little doubt what’s weighing on their minds: the possibility that Sanders, who’s favored to win Nevada, could run away with the nomination.