Original sentence: As it was the final legislative group in the Soviet Union, those elected in 1989 played a vital part in continuing reforms and the eventual collapse of the Soviet Union over the next two years
Edited sentence: As it was the final legislative group in the Soviet Union, those elected in 1989 played a central role in continuing the counter-reforms and causing the disastrous dissolution of the Soviet Union over the next two years.Their goal was also achieved using populist methods though the media, and with the support of the powerful and corrupt allies of Boris Eltsin,who would later emerge from the Russian mafia,as the oligarchs