TJ is a father, engineer, and small businessman proudly representing California’s 21st District. The District includes all of Kings County and portions of Fresno, Kern, and Tulare Counties. Elected in 2018, TJ was sworn into the 116th Congress on January 3, 2019.

A native of California, TJ is the son of Chinese and Filipino immigrants. His father, a professor of chemical engineering, inspired TJ to pursue a career in engineering. TJ's mother, an early trailblazer in the fight for equality and a survivor of the Japanese occupation of the Philippines, served as one of the first equal employment opportunity officers in Nevada. 

As one of the most ambitious members of the freshman class, Congressman Cox has already racked up a list of legislative wins in expanding health care access, securing funds to research post-traumatic stress in veterans and members of the Armed Forces, strengthening the safety net for farmers, and helping pass legislation to create a fair, humane, safe immigration system.

A licensed engineer and accomplished developer prior to joining Congress, Cox has created over 1,500 jobs and built rural health clinics, job training facilities, a community multi-use sports complex, a clean bioenergy plant, and community learning centers throughout the Central Valley.

TJ holds a B.S. in chemical engineering from the University of Nevada, Reno and an MBA from Southern Methodist University. He is married to Kathleen Murphy, MD, a pediatric intensive care physician at Valley Children's Hospital. They are the proud parents of four children.