Far right party takes 14 seats in Slovakia elections
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Mr Kotleba made headlines when he won the 2013 regional elections in Banska Bystrica, where he now serves as governor.
The term "neo-Nazi" is often bandied about, at times foolishly, to describe anyone with views slightly to the right of Marine Le Pen.
But Marian Kotleba is different - he was, once, literally a neo-Nazi.
Until recently, he dressed in a uniform modelled on the Hlinka Guard, the militia of the 1939-45 Nazi-sponsored Slovak State.