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RAW VIDEO: US Senator Rand Paul launches his 2016 presidential campaign with a combative address against both Washington and his fellow Republicans, declaring "we have come to take our country back."

Washington: As supporters cheered and waved banners reading "Defeat the Washington Machine", Rand Paul, a senator and son of a congressman and presidential candidate, announced his own candidacy for the Republican nomination for the White House at a rally in Kentucky on Monday.

Despite his long and powerful ties to the capital and its politics, Senator Paul insisted he would be an outsider candidate.

Senator Rand Paul, in Kentucky on Tuesday, announces he would like to be president of the US. Photo: AP

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Rand Paul: 'Outsider' candidate running for US president