Election officials say Yabloko's petition to run in the March 11 vote contained false or suspicious signatures.
Mikhail Amosov, a senior member of Yabloko in St. Petersburg, called the court ruling a "political decision."
Other opposition parties allege that the exclusion is part of a Kremlin effort to suppress dissent.
Demonstrators in Moscow carry a coffin with a television in it to protest government control over broadcasting (TASS file photo)
DO RUSSIANS LIKE THEIR GOVERNMENT? During a briefing at RFE/RL's Washington office on November 15, Richard Rose, director of the Center for the Study of Public Policy at the University of Aberdeen, discussed the results of 14 surveys he has conducted since 1992 on Russian public opinion about democracy and the country's development. He discussed the implications of these opinions for relations with the West and for Russia's 2008 presidential election.
LISTENListen to the complete discussion (about 42 minutes):
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