The Senate’s No. 3 leader Sen. John Thune (R-SD) said it is time for Donald Trump to step down and allow Republican Vice Presidential candidate Mike Pence to be the Republican nominee.

Donald Trump should withdraw and Mike Pence should be our nominee effective immediately. — Senator John Thune (@SenJohnThune) October 8, 2016

John Thune is the first Republican leader to disavow Donald Trump. He had previously endorsed Trump.