AP -- Former New York Mayor Rudy Giuliani will campaign with Senate candidate Marco Rubio.
The two will appear together Monday in Miami, where Giuliani is expected to endorse Rubio in the Republican primary against Gov. Charlie Crist.
In a statement released by the Rubio campaign, Giuliani said, "Marco Rubio is one of the Republican Party's true rising stars. He's a bold leader who will bring common sense to Washington where it's badly needed."
Giuliani sought Crist's endorsement when he ran for president in 2008, but Crist instead endorsed eventual nominee Sen. John McCain.
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