Mark has 40 years of experience in Washington, D.C. in the budget and appropriations process in the executive and legislative branches, and public health advocacy.  Mark is a co-founder of Cornerstone Government Affairs, a lobbying and public affairs firm headquartered in Washington, DC.  Mark’s practice area is non-profit associations and coalitions that have represented state and local health departments, schools of public health, immunization coalitions, and related organizations.  Prior to Cornerstone, Mark served on the House Appropriations Committee, including several years as the Democratic staff director for the Labor, HHS, Education appropriations subcommittee.  Before his time on the Hill, Mark was a budget analyst at the Department of the Interior handling the Bureau of Indian Affairs, and was a Presidential Management Fellow.  Mark has a BA and MPA from the University of Arizona.