Democrat Robin Kelly claimed victory tonight in a low-turnout contest to decide the successor to former Rep. Jesse Jackson Jr. in a 2nd Congressional District with a history of scandal-plagued representation. With more than two-thirds percent of precincts counted, the former state lawmaker had about 77 percent of the vote to about 16 percent for Republican Paul McKinley, an unemployed political activist and ex-convict. The rest of the vote went to a Green Party candidate and three independent candidates who made the special general election ballot.