SPRINGFIELD — Gov. Bruce Rauner vetoed a bill that would have allowed the state treasurer’s office to invest up to 5 percent of administrative funds in stocks of publicly traded American businesses, putting “politics over people,” Treasurer Michael Frerichs said.Senate Bill 2661, vetoed by the governor Tuesday, would have expanded the treasurer’s ability to invest state money by increasing the type and number of financial institutions the office can invest in.“I am concerned that this …