President Barack Obama may face the voters in two months, but several Democrats are already laying the groundwork for a future White House run.
Up-and-coming Democratic stars like Maryland Gov. Martin O'Malley, Virginia Sen. Mark Warner, Newark, N.J., Mayor Cory Booker and others are making the rounds before state delegations and at private events surrounding the Democratic National Convention in Charlotte.
Vice President Joe Biden, a potential 2016 candidate, will speak Thursday night, shortly before Obama. Another possible 2016 contender, New York Gov. Andrew Cuomo, is keeping a low profile, spending only a day in Charlotte.
Secretary of State Hillary Rodham Clinton is half a world away on an 11-day tour of the Asia-Pacific region. She has denied interest in running for president again.
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