Clinton VP runners-up praise Kaine
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As Hillary ClintonHillary Diane Rodham ClintonRep. John Katko: Why I became the first Republican lawmaker to support impeachment Can we protect our country — from our rulers, and ourselves? For Joe Biden, an experienced foreign policy team MORE announced that she had picked Virginia Sen. Tim KaineTimothy (Tim) Michael Kaine'I saw my life flash before my eyes': An oral history of the Capitol attack 7 surprise moments from a tumultuous year in politics Robert E. Lee statue removed from US Capitol MORE as her running mate choice, two of previous contenders for the spot praised the pick.

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New Jersey Sen. Cory Booker and Secretary of Housing and Development Julian Castro took to Twitter Friday evening to show their support for Kaine.

Booker's tweet declaring "Kaine is able" actually beat Clinton to the punch, going out two minutes before the official confirmation from her account.