Career
Prior to his election to the Legislature, Walker had a career in the oil and gas industry and later started and owned a land surveying business. In August 2013, Walker announced his intention not to seek a second term in the Senate. The next month, after voting in favor of expanding Medicaid in Michigan under the Affordable Care Acting, Walker was caught on tape at a Republican luncheon telling a local conservative radio host "screw you" after the host, Brian Sommerfield, called Walker a "weak Republican.".
