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The Democratic National Convention will be held in Philadelphia July 25-28, but it’s never too early to think about Hillary Clinton’s running mate. Check out some of the potential candidates.

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Julian Castro, the Secretary of Housing and Urban Development, is considered a leader for the nomination.

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New Jersey Sen. Cory Booker is a favorite of Hillary Clinton supporters.

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At least Clinton knows Bernie Sanders won't ever bring up her "damn emails."

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The former New York City Mayor Michael Bloomberg thought about running himself.

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Elizabeth Warren is hugely popular among progressive Democrats.

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George Clooney hosted big-money fundraisers for Clinton and is extremely interested in politics.
Also Read: Hillary Clinton Holds Private Meeting With Hollywood Big Wigs

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Former Massachusetts Gov. Deval Patrick was the first African-American governor to be reelected.

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Virginia Sen. Tim Kaine can help carry the Old Dominion State.

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Bill Clinton, because, well, you’ve seen “House of Cards,” right?
Also Read: ‘House of Cards’ Fact Check: Could the Underwoods Really Pull Off Their Season 4 Schemes?

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Virginia Sen. Mark Warner has explored running for president himself.

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New Mexico Sen. Martin Heinrich was endorsed by the NRA during the 2010 congressional election.

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Colorado Gov. John Hickenlooper has publicly supported Clinton.

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Ohio Sen. Sherrod Brown is considered a progressive hero.

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Former Maryland Gov. Martin O’Malley thought he had a chance for the presidency, so it’s safe to assume he’d love a shot at VP.

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Minnesota Sen. Amy Klobuchar lacks name recognition but is popular among Democratic insiders.

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Secretary of Labor Thomas E. Perez could help with Hispanic voters and Catholics.