United Russia has called on Federation Council Speaker Sergei Mironov to resign as tensions between pro-Kremlin parties rise ahead of December’s State Duma elections and the 2012 presidential vote. “We have a position on Mironov: He must renounce his mandate as senator,” Boris Gryzlov, speaker of the Duma and chairman of United Russia’s supreme council, said in a statement Friday. Mironov, who stepped down as […]