Russia’s election commission has rejected anti-war challenger Boris Nadezhdin as a candidate in next month’s presidential vote.
Mr Nadezhdin has been relatively critical of Vladimir Putin’s full-scale war in Ukraine when few dissenting voices have been tolerated in Russia.
Election authorities claimed more than 15% of the signatures he submitted with his candidate application were flawed.
He had tried to challenge this, but the commission rejected his bid.
Refusing to give up, Mr Nadezhdin, 60, said on social media that he would challenge the decision in Russia’s Supreme Court.
The Central Election Commission said that of the 105,000 signatures submitted by Mr Nadezhdin, more than 9,000 were invalid and they cited a variety of violations.