Laura Ingraham. (The Washington Post)

Conservative radio host Laura Ingraham will travel to Tennessee next Tuesday where she will campaign for state Rep. Joe Carr, who is running against U.S. Sen. Lamar Alexander in the Republican primary.

“Electing Joe Carr will be a major victory in this new movement to restore America,” Ingraham said in a statement distributed by "Beat Lamar," a group trying to unseat the senator that is backed by a conservative super PAC.

Ingraham will appear at a rally in Nashville. She announced Monday on her radio program that she is "all in" for Carr.

Carr is running to Alexander's right on the issue of immigration. The senator voted for a comprehensive reform bill that includes a path to citizenship for undocumented immigrants. Carr and Ingraham staunchly oppose the measure.

Ingraham has been a closely watched figure in politics ever since she campaigned for Dave Brat ahead of his unlikely win over Rep. Eric Cantor (R-Va.), which has by far been the biggest upset of 2014.

The primary is Aug. 7. In addition to Carr, Alexander faces other lesser-known opponents. The senator is viewed as the clear front-runner.