washington u.s. house republicans work change healthcare overhaul bill would implement work requirement medicaid program poor well boost tax credit old low income people u.s. house speaker paul ryan say sunday think offer assistance bill currently lower-income people age 50 64 ryan say tax credit health insurance propose legislation speak fox news sunday television program ryan also say republicans work change would allow federal block grant state medicaid lawmakers plan healthcare legislation house floor thursday ryan say u.s. republicans work medicaid tax credit change ryan