Rubio, Demings clash in only debate for U.S. Senate seat ahead of November election

Republican U.S. Sen. Marco Rubio and his Democratic challenger, Congresswoman Val Demings, quickly got combative Tuesday as they sought to sway remaining undecided voters in their only head-to-head meeting ahead of the Nov. 8 election for a seat the GOP must retain if it wants to take control of the U.S. Senate.

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