The Texas Medical Association, the main political arm of physicians in the state, withdrew its endorsement of U.S. Sen. John Cornyn for not helping doctors avoid looming cuts in their Medicare fees. Texas Medical Association spokesman Steve Levine said its 43,000 doctors and medical students are furious because Mr. Cornyn voted to block Senate consideration of a House-passed bill to stave off 10.6% cuts in doctors' Medicare fees. Cornyn said in a prepared statement that he voted against considering the House bill because "the current physician payment system is broken" and needs to be overhauled.