FORT LAUDERDALE, Fla. – After two previous runs for U.S. president, former Reagan diplomat Alan Keyes has announced he's again seeking the White House in the 2008 election, and he'll take part in Monday night's Republican presidential debate here.

Keyes told syndicated radio host Janet Parshall he's "unmoved" by the lack of moral courage shown by the other candidates, among whom he sees no standout who articulates the "key kernel of truth that must, with courage, be presented to our people."