Giluiani takes his revenge out on Charlie Crist

Rudy Giluiani hung his 2008 presidential bid on a strong showing in the Florida Republican primary. His campaign, however, was derailed by several factors - including Gov. Charlie Crist's endorsement of John McCain a few days before Republicans went to the polls.

On Monday, Giluiani finally got his payback against the governor when he endorsed Marco Rubio for the Republican nomination for Senate.

"This is an easy choice. Not just for Republicans but for Floridians. He is the one and only candidate we can trust to represent Republican principles in Washington,'' Giuliani said during a 20-minute speech in Coral Gables.

Giliuani finished a distant third in the 2008 primary, so it may be overstating it to conclude that Crist's non-endorsement doomed his candidacy. Or that it will give that much of an edge to Rubio.

But politicians have long memories, and when given a chance, like the one Giuliani had Monday, they aren't shy about taking out their revenge when they feel slighted.