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Donald Trump’s senior White House advisers are reportedly using private email servers.

Steve Bannon, Kellyanne Conway, Jared Kushner and Sean Spicer all have active Republican National Committee email accounts, according to Newsweek.

While it is not illegal for the President’s administration to use separate political email accounts, engaging in political activity under Government time is forbidden.

Mr Trump repeatedly chastised election rival Hillary Clinton during the election campaign for her use of a private email server while she was Secretary of State.

An FBI investigation found she and her aides were "extremely careles" in handling classified information.

Mr Trump continually threatened to have her jailed, stating at one rally: “Hillary Clinton is guilty. She knows it, the FBI knows it, the people know it.

“And now it’s up to the American people deliver justice at the ballot box on Nov. 8… Unbelievable what she gets away with.”

He later backed down on his pledge to press charges but Mrs Clinton’s emails still dominated coverage of the election race.

The email server in question was used by the George W Bush administration which was accused of violating the Presidential Records Act after it reportedly “lost” 22 million emails between 2003 and 2009.