The widening gap between the wealthiest Americans and everyone else has been matched by a slowdown in state tax revenue, according to a report being released Monday by Standard & Poor's. Stagnant pay for most people has compounded the pressure on states to preserve funding for education, highways and social programs such as Medicaid. S&P's analysis builds on a previous report this year in which it said the widening gap between the wealthiest Americans and everyone else has slowed the U.S.