**CORRECTS SPELLING OF YELTSIN IN FIRST REFERENCE**FILE** Russian leader Boris Yeltsin is shown as he emerges from a balloting booth after casting his vote in the Russian republic's first democratic presidential election in this June 12, 1991 file photo. Former President Boris Yeltsin, who engineered the final collapse of the Soviet Union and pushed Russia to embrace democracy and a market economy, has died, a Kremlin official said Monday, April 23, 2007. He was 76. (AP Photo/ Liu Heung Shing, file)