The Romanian nationalist leader, Corneliu Vadim Tudor, has been indicted by state prosecutors for challenging the authority of President Emil Constantinescu.
He's accused of repeatedly calling the President an agent of the United States' security service, the CIA.
Mr Tudor, who is leader of the Greater Romania Party, had his immunity from prosecution lifted by parliament earlier this year.
He says the new indictment was politically motivated.
He is also facing a number of other separate charges.
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