NEW: "There is more work to be done." Senate Majority Leader John Thune says voters sent Republicans a clear message: The cost of living is still too high. Th

NEW: "There is more work to be done." Senate Majority Leader John Thune says voters sent Republicans a clear message: The cost of living is still too high. Thune says the election gives Republicans an opportunity to reflect on where they need to do better. He points to GOP-backed tax cuts and hous…