Texas turned down an expansion of Medicaid coverage and said it will not create a state-run healthcare insurance exchange, joining the chorus of states that are rejecting two key proposals of the Obama administration's healthcare overhaul. In a letter to U.S. Health and Human Services Secretary Kathleen Sebelius released on Monday, Texas Gov. Rick Perry, whose bid for the GOP presidential nomination fell flat this year, rejected both healthcare proposals. The move, which had been widely expected, echoes similar pronouncements by other conservative Republican governors as well as the GOP's overall opposition to the heathcare law.