The Associated Press

PHOENIX — The founder of the Minuteman Civil Defense Corps is expected to announce his intentions to challenge Republican U.S. Sen. John McCain of Arizona next year.

Chris Simcox is expected to make the announcement Wednesday. He already has a Web site promoting his candidacy for the U.S. Senate in 2010.

Simcox says on the site he represents conservative values and will always put the United States first.

Neither Simcox nor a McCain spokeswoman responded to calls for comment. McCain will be seeking his fifth term to the Senate.

Simcox's Web site says the Minuteman Civil Defense Corps patrols the U.S. southern border and reports illegal immigrants to authorities.