But GOP sources said former U.S. Education Secretary and Tennessee Gov. Lamar Alexander, a Republican, would announce on Monday that he is running. Democratic Rep. Harold E. Ford Jr. was among several of the state's House members said to be pondering a challenge. Candidates must file by April 4.
I'm not sure about Ford's color. He may just be light skinned rather than bi-racial but I honestly have no idea.
BTW, Cameron's report said that nearly all the GOP think it's a lock for Alexander if he wants it.