Obama aides, on the other hand, have kept quiet about how and when the president is practicing. Some top members of his debate team, including senior advisers David Axelrod and David Plouffe, traveled with Obama to Nevada on Air Force One.
But Sen. John Kerry, D-Mass., who is standing in for Romney, made his way to the resort in Henderson on his own.
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Associated Press writer Kasie Hunt in Boston contributed to this report.
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