WASHINGTON, April 6 (UPI) -- The prospect of losing two U.S. House seats in special elections spurred a Democratic effort to avoid a potential domino effect in November, strategists said. Projections for special elections next month in Hawaii and Pennsylvania have caused alarm among Democratic officials, who said they feared dual defeats would play into the thinking that the Democratic Party is consigned to huge losses in the fall, Politico reported Tuesday. In Hawaii, party leaders said they were worried the two top Democrats will split the vote, allowing a Republican to take a seat with a plurality in...