ABC News’ Jonathan Karl interviews Sen. Marco Rubio, R-Fla., on “This Week.”

Marco Rubio said Monday that one of his campaign canvassers "was brutally attacked" in Hialeah, Florida, in what he described as a politically motivated assault

Sen. Rubio terminated Clint Reed "effective immediately" after he learned of "allegations of improper conduct."

The Republican senator visited the track on Tuesday.

Tillerson's nomination to be Secretary of State may face it's first roadblock.

Rubio keeps his seat in the U.S. Senate, defeating Rep. Patrick Murphy.

But the Florida senator did not rule out another presidential bid.

A report claims a Trump-owned company violated the U.S. trade embargo with Cuba.

Sen. Marco Rubio accused the TSA of lying about air marshals on Cuba flights.