Following her husband's murder, Taya has given speeches and talks addressing his service and veterans' issues at numerous venues, as well as appeared on news networks such as CNN and Fox News. She is an advocate for women and families who have lost family members while serving in war. In August 2013, the state of Texas enacted the Chris Kyle Law (SB162), which was created to "expand the effort to help ease employment challenges for active duty military members and their spouses". At the ceremony, Kyle stated, "I hope that by incorporating these changes into current Texas law we can honor the legacy of Chris Kyle and the many like him."
In May 2013, former Minnesota governor Jesse Ventura brought a defamation suit against Taya Kyle for $1.3 million. The lawsuit was the continuation of an original lawsuit filed in 2012 against Kyle's husband, over a statement made in the book American Sniper. In the book's chapter titled "Punching Out Scruff Face", Chris Kyle stated he had punched a celebrity he called "Scruff Face" for saying the SEALs "could afford to lose a couple" in war. Ventura won the lawsuit in an 8 to 2 jury decision. An appeals court threw out part of the lawsuit in June 2016, and the case was ultimately settled out of court for an undisclosed amount of money.