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The Democratic candidate was was filmed applauding like a "robotic seal" during a speech by her former rival Bernie Sanders at a rally at the University of New Hampshire. Viewers immediately took to Twitter to swap theories about the 68-year-old former First Lady.

GETTY Hillary Clinton has been labelled a robot in the latest conspiracy theory

Twitter user @VolatileAmine wrote: “I’m listening to Bernie speak and watching Hillary clap like a robot.” The Republican party also fuelled speculation, with one of its campaign teams tweeting: “Watch this video – it proves Hillary is a robot. “Hillary just keeps clapping and clapping.” Twitter user @kessmom22 added: "Robot Hillary gets stuck again, this time in clap mode." TRUMP AND CLINTON: MOST BIZARRE CONSPIRACY THEORIES

GETTY Mrs Clinton was at a rally with former rival Bernie Sanders

TWITTER Trump's critics hit out at Mrs Clinton, calling her a robot

The Trump supporter was referring to other incidents where Mrs Clinton has been accused of being a robot. During her first televised debate with Republican opponent Donald Trump on Monday, Mrs Clinton was photographed with what appears to be an electronic wire trailing down her back underneath her jacket. DID HILLARY WEAR AN EARPIECE TO CHEAT THE US DEBATE?

GETTY Conspiracy theorists claimed this wire proves Mrs Clinton is a robot

The bulky device is likely to be a battery pack as The Federal Electoral Commission refused to rule out the use of communications devices by politicians. But one Twitter user said: "It was a water-based battery pack that helped power the Hillary robot!!! And instructions were in a folder on her lectern!!!"

GETTY Mrs Clinton's opponent Donal Trump has also been the subject of numerous conspirarcy theories

You guys are the first to realise that I'm really not even a human being. I was constructed in a garage in Palo Alto a very long time ago Hillary Clinton

Another, @PolitixGal, added: "Hillary's like Mr Robot - scripted, robotic." Mrs Clinton joked with a reporter in an interview last year that she was in fact a robot. She said: “You guys are the first to realise that I'm really not even a human being. I was constructed in a garage in Palo Alto a very long time ago."

Hillary Clinton in pictures Mon, April 3, 2017 The extraordinary life of Hillary Clinton through pictures Play slideshow 1 of 40