WASHINGTON (CNN) -- Bobby Schindler, the brother of Terri Schiavo, has endorsed Sen. Sam Brownback's GOP presidential bid, his campaign announced Monday

Schindler, as well as Schiavo's parents, were involved in a high-profile legal and moral fight with Schiavo's husband, Michael Schiavo, over whether he had the authority to have her feeding tube be removed.

Michael Schiavo contended his wife would not want to be kept alive artificially. But her parents and brother argued she had no such death wish and believed she could get better with rehabilitation. Terri Schiavo did not leave anything in writing about what she would want if she ever became incapacitated. Courts repeatedly sided with Michael Schiavo, and after the Supreme Court refused to hear the case in March 2005, her feeding tube was removed.

"My family will never forget Sam Brownback's valiant efforts to save my sister's life," Schindler said in a statement released Monday. "Sam Brownback is the pro-life conservative we can trust to stand for all life, regardless of political calculations."

Related: Poll: Giuliani leads the GOP pack

Watch Video: CNN's Bill Schneider analyzes the latest polls to see how Republican voters feel about their field