Mark is an Associate Professor at The University of Texas at Tyler, where he also manages the Center for Opinion Research.

Research surveys on how Texas is changing politically have been cited by The Late Show with Stephen Colbert, FiveThirtyEight, The New York Times, Austin American-Statesman, Dallas Morning News, Texas Tribune and more.

His research on American political institutions and public opinion has been published in American Politics Research, Social Science Quarterly, Legislative Studies Quarterly, Congress & the Presidency, Journal of Political Institutions and Political Economy, and PS: Political Science and Politics. In 2015 and 2016, Mark worked as an APSA Congressional fellow.