Bush vigorously opposed the original amendment , which was approved in 2002 and will be watered down if voters ratify the new measure this fall . _ An expansion of school voucher programs , which were started under Bush and form a centerpiece of his educational reforms . _ A cut in the corporate income tax rate , from 5.5 percent to 4.5 percent , for the first $ 1 million in taxable income , satisfying a key tenet of Bush 's bedrock conservative philosophy . _ An overhaul of the state 's Medicaid system that substantially widens a largely privatized managed-care pilot program started five years ago by Bush . _ Conditional authority for property insurance companies to boost premiums without government approval .