“In my state, I’ll bet 90 percent of us vote by mail. It works very, very well and it’s a very Republican state,” Romney told reporters on Capitol Hill Wednesday, according to ABC News.

Much of the Western U.S. has voted by mail for years, and a poll released Wednesday found residents of those states are among the demographics most likely to say they would prefer to vote by mail rather than in person. Nevada’s state Republican Party is currently running Facebook ads encouraging voters to mail ballots in ahead of the deadline.