The campaign is being funded by the American National Super PAC, which was created by the chairman of the American Freedom Party, William Johnson. The robocalls were first reported by Talking Points Memo

A spokesperson for the Trump campaign did not immediately respond to CNN request for a statement on the robocall campaign.

In the 50-second robocall, Johnson, along with Christian talk show host Ronald Tan and white supremacist magazine "American Renaissance" founder Jared Taylor, urges listeners to support Trump in the Iowa caucuses, according to a press release from the PAC.

"I'm Jared Taylor with American Renaissance," Taylor says. "I urge you to vote for Donald Trump because he is the one candidate who points out that we should accept immigrants who are good for America. We don't need Muslims. We need smart, well-educated white people who will assimilate to our culture. Vote Trump."

Tan, a minister and host of the radio show "For God and Country," says on the call, "First Corinthians states: God chose the foolish things of this world to shame the wise and God chose the weak things of this world to shame the strong. For the Iowa caucuses, please support Donald Trump. He is courageous and he speaks his mind. God Bless.'

Closing the call, Johnson says, "I am William Johnson, a farmer and white nationalist. Support Donald Trump. I paid for this through the super PAC," before saying the number to call, and adding, "This call is not authorized by Donald Trump."

The robocall campaign was announced Friday from the American Freedom Party. In the release, Tan explained he is working with the group because "America has lost its direction. Donald Trump is called 'The Great White Hope' for racially conscious whites, but he is also called of God to make America great again. Donald Trump says what he believes. He may be weak and foolish in the eyes of man, but he is qualified to be an instrument in God's hands."