"It’s imperative that we get accurate information about the Census to all Montanans,” Cooney said in the statement. “The official Census is easy to complete, secure, and does not cost money. An accurate and complete Census count for Montana is too important to take lightly.”

The mailing says at the bottom it was "Paid for by the Republican National Committee."

An RNC official said in an email that the mailers are "clearly marked that they are from the Republican National Committee."

"The mailers receive an overwhelming positive response and we continue to send each year because it performs so well," the RNC official wrote.

The Democratic National Committee has sent out similar surveys in other states, but those do not appear to contain any references to "Census Documents."

"The Democratic Party does not attempt to imitate government documents," a Montana DNC official told the Missoulian in an email. "Particularly with the 2020 Census coming up, the last thing Democrats are interested in is stifling the ability of our citizens to make themselves counted."