U.S. Sen. Pat Toomey (R-Pa.) had a brief response to comedian Jon Stewart calling him out specifically while criticizing Senate Republicans on Wednesday for blocking a bill to provide healthcare for veterans exposed to toxic burn pits while serving abroad. “That’s not worth responding to,” Toomey said when asked for his reaction. The military burn pits bill, or PACT Act, initially passed the 100-member Senate with the support of 34 Republicans and all 50 Democrats. It would increase spending by more than $300 billion over the next decade and dramatically boost health care services and disability benefits for veterans exposed...