WASHINGTON - Democrats in numerous key Senate campaigns face a financial disadvantage this fall, according to strategists in both parties, the combined result of the priority given to John Kerry (news - web sites)'s bid for the White House, new fund-raising restrictions and the location of the most competitive races. While developments in Oklahoma and Colorado sparked expressions of optimism from Democrats, most hotly contested Senate races are outside the 17 battleground states targeted by Kerry, a cluster of independent groups supporting him and the Democratic National Committee (news - web sites). Democrats also lag in the fund-raising race between...