GREENVILLE, SOUTH CAROLINA— Sen. Ted Cruz (R-TX, following the tragic death of Supreme Court Justice Antonin Scalia, pledged to honor his name by asking his followers to help prevent Barack Obama from nominating his replacement to the nation’s highest court.

Justice Scalia, one of the court’s most steady Constitutional voices for decades, passed away at his West Texas ranch on Saturday. The 79-year-old died of natural causes, according to reports.

Cruz took to social media, stating:

Justice Scalia was an American hero. We owe it to him, & the Nation, for the Senate to ensure that the next President names his replacement. — Ted Cruz (@tedcruz) February 13, 2016

Sen. Cruz also issued the following statement regarding Scalia’s passing: