Former presidential hopeful Herman Cain is backing Newt Gingrich's White House bid.
Cain endorsed Gingrich Saturday, just days before Florida's primary, at a Republican fundraiser.
Gingrich was also slated to speak to the group later Saturday night.
Gingrich, a former House of Representatives speaker, is in a fierce fight for Tuesday's Florida's Republican primary with Mitt Romney.
Cain, a favourite of the conservative tea party movement and a former pizza executive, left the race before the first nominating contests facing accusations of unwanted sexual advances. He remains popular, however, and would be a late boost for Gingrich.
