Tax-Exempt Group Linked To Democratic Fund-Raisers
Federal and Senate investigators say tax-exempt group called Vote Now '96, that promoted voter turnout in 1996 elections, received contributions from donors in close coordination with Democratic fund-raisers; say one contribution steered to group was once intended to aid Ron Carey in his campaign for re-election as president of teamsters' union; Vote Now '96 has come under increasing scrutiny by Federal prosecutors in New York in case in which three campaign aides to Carey pleaded guilty to fraud and conspiracy charges; in their teamsters inquiry, Federal investigators are focusing on reported arrangements to funnel large sums of money improperly between Democratic Party and teamsters (M)