Marco Rubio Marco Rubio

Rep. Ileana Ros-Lehtinen, pictured right, announced Sunday that she'll retire from Congress at the end of her term next year. In this 2016 photo, Ros-Lehtinen, puts heart glasses on a dog at the ASPCA's Paws for Love Valentine's Day pet adoption event at the Capitol. Bill Clark/CQ-Roll Call,Inc. hide caption

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Bill Clark/CQ-Roll Call,Inc.

Marco Rubio, R-Fla., is urging other Republicans not to use the WikiLeaks revelations given that U.S. intelligence officials say the emails are a product of a hack with foreign government influence. John Raoux/AP hide caption

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John Raoux/AP

Rep. Debbie Wasserman Schultz (from left), Sen. Marco Rubio and Sen. John McCain. Gaston De Cardenas/AFP/Getty Images; Joe Raedle/Getty Images; Patrick T. Fallon/Bloomberg via Getty Images hide caption

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Gaston De Cardenas/AFP/Getty Images; Joe Raedle/Getty Images; Patrick T. Fallon/Bloomberg via Getty Images

Sen. John McCain, R-Ariz., and Sen. Marco Rubio, R-Fla., talk on Capitol Hill in 2014. Both are expected to win their primaries for re-election Tuesday. Carolyn Kaster/AP hide caption

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Carolyn Kaster/AP

Incumbents Poised For Big Wins Despite All The Attention On Outsiders

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Donald Trump speaks at Fountain Park during a campaign rally on March 19, 2016 in Fountain Hills, Ariz. Ralph Freso/Getty Images hide caption

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Ralph Freso/Getty Images

Young Republicans Ponder Trump's Lasting Impact On The GOP

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Republican presidential candidates, Sen. Marco Rubio, R-Fla., left, Donald Trump, Sen. Ted Cruz, R-Texas, and Ohio Gov. John Kasich, right, stand together during the signing of the National Anthem, before the start of the Republican presidential debate Thursday in Miami. Wilfredo Lee/AP hide caption

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Wilfredo Lee/AP