In 2003, she hired John C. Eastman of the Claremont Institute to fight the Supreme Court decision when then Governor Kenny Guinn sued the Legislature to nullify the state constitution and allow a simple majority of the legislature to pass an $836 million tax increase in "Angle v. Guinn". Angle used her personal funds to defend the state constitution's two-thirds vote requirement to raise taxes and, with Eastman, took the case to Federal District Court in Nevada, which referred it to the Ninth Circuit Court of Appeals and finally to the U.S. Supreme Court. The Legislature subsequently passed the $836 million tax increase by a two-thirds vote. Angle ultimately prevailed in the suit; in 2006, the state supreme court reversed its 2003 decision and restored the Nevada Constitution's two-thirds vote provision.