KIEV, Feb. 19 – The rating of the Regions Party, the largest opposition group, plummeted following the party’s efforts to block Parliament’s work in protest of plans for rapid accession to NATO, an opinion poll shows.

The Regions Party scored 23.1% support as of Feb. 5, down from 34.4% that the party had scored at the snap Sept. 30, 2007 election, Razumkov Center, a Kiev-based think tank, reported.