General Motors Co. has resumed contributing to political campaigns, lifting a self-imposed ban on political spending adopted during the auto maker’s bankruptcy restructuring last year. GM gave $90,500 to candidates running in the November elections, Federal Election Commission records show. The beneficiaries include midwestern lawmakers, mostly Democrats, who have traditionally supported the industry’s legislative agenda on Capitol Hill, including Sen. Debbie Stabenow and Rep. John Dingell of Michigan and Sen. Sherrod Brown of Ohio. The list also includes House Republican Whip Eric Cantor (R., Va.), who would likely assume a top leadership post if Republicans win control of the House...