Sherri Greenberg is lecturer and director of the Center for Politics and Governance at the Lyndon B. Johnson School of Public Affairs. She served for 10 years as a member of the Texas House of Representatives, completing her final term in January 2001. Her expertise includes state and national campaign politics, electronic government, and public finance and budgeting.
In this video, Greenberg explains why Texas Governor Rick Perry decided to continue to compete in the South Carolina primary after coming in fifth in the Iowa caucus.
Watch more Elections 2012 videos from Sherri Greenberg: