Ilya Valeryevich Yashin co-founder and one of the leaders of the political movement Solidarnost. He is also the leader of the Moscow branch of the RPR-PARNAS, in which Solidarnost participates. In 2005 he was one of the founders of the civic youth movement Oborona. He was an active participant in Dissenters' Marches and the rallies "For Fair Elections". In 2012 he was elected to the Russian Opposition Coordination Council.
He was a candidate for deputies in the Krasnoselsky district in the municipal elections of 2017.