HELENA, Mont. — Vice President Mike Pence is wading back into the special election for Montana’s at-large House seat with a new robocall urging voters to support Republican Greg Gianforte this week. “Hello, this is Vice President Mike Pence, calling to say there is an important special election being waged right now for Montana’s open congressional seat," Pence says in the call, which Republicans started deploying on Tuesday, two days before Election Day.