I wonder if the Department of Homeland Security considers the Governor of Texas a "Right Wing Extremist"?
http://www.wnd.com/index.php?fa=PAGE.view&pageId=94803
Money quote:
The report from DHS' Office of Intelligence and Analysis defines right-wing extremism in the U.S. as "divided into those groups, movements and adherents that are primarily hate-oriented (based on hatred of particular religious, racial or ethnic groups) and those that are mainly anti-government, rejecting federal authority in favor of state or local authority, or rejecting government authority entirely. It may include groups and individuals that are dedicated to a single issue, such as opposition to abortion or immigration."