A Gravis Marketing survey of Montana likely voters gives Republican Greg Gianforte a 12 point lead over Democrat Rob Quist in the race for the state's at-large congressional seat. The special election will be held May 25th. The seat became vacant when Republican Ryan Zinke resigned after being confirmed as Secretary of the Interior. 

Gianforte, a technology entrepreneur, saw 50% support in the poll, with Quist, a musician, at 38%. The seat has been in Republican hands since 1997. Zinke won re-election by 15 points in November, while Donald Trump won the state by 21 points. The race is rated as likely Republican by Larry Sabato's Crystal Ball and The Cook Political Report, while Inside Elections has it as safe Republican.