Rafael Edward Cruz (/kruːz/; born December 22, 1970) is an American politician and attorney serving as the junior United States senator from Texas since 2013. A member of the Republican Party, Cruz was the solicitor general of Texas from 2003 to 2008. Since 2025, Cruz has chaired the Senate Commerce Committee.

After graduating from Princeton University and Harvard Law School, Cruz pursued a career in politics, eventually serving as a policy advisor in the George W. Bush administration. In 2003, Texas attorney general Greg Abbott appointed Cruz to serve as Solicitor General, a position he held until 2008. Cruz was elected to the U.S. Senate in 2012, becoming the first Hispanic American to serve as a U.S. senator from Texas. In the Senate, he has taken consistently conservative positions on economic and social policy. He played a leading role in the 2013 federal government shutdown, seeking to force Congress and President Barack Obama to defund the Affordable Care Act. Cruz was reelected in a close race in 2018 against Democratic nominee Beto O'Rourke and won a third term in 2024 against Congressman Colin Allred. In 2025, he drafted and led the effort to pass the TAKE IT DOWN Act, signed into law by President Donald Trump.

In 2016, Cruz sought the Republican presidential nomination, emerging as a serious competitor to front-runner Donald Trump in a primary marked by intense, often personal, exchanges. Cruz initially withheld his endorsement after Trump secured the nomination, but became a strong supporter during Trump's first term. In 2021, Cruz objected to the certification of Joe Biden's victory in the 2020 presidential election.

Rafael Edward Cruz was born on December 22, 1970, at Foothills Medical Centre in Calgary, Alberta, Canada, to Eleanor Elizabeth (née Darragh) Wilson and Rafael Cruz. Cruz's mother was born in Wilmington, Delaware. She is of three-quarters Irish and one-quarter Italian descent, and earned an undergraduate degree in mathematics from Rice University in the 1950s.

Cruz's father, Rafael, was born and raised in Cuba, the son of a Canary Islander who immigrated to Cuba as a child. As a teenager in the 1950s, Rafael Cruz was beaten by agents of Fulgencio Batista for opposing the Batista regime. He left Cuba in 1957 to attend the University of Texas at Austin and obtained political asylum in the United States after his four-year student visa expired. He earned Canadian citizenship in 1973 and became a naturalized United States citizen in 2005.

At the time of his birth, Ted Cruz's parents had lived in Calgary for three years and were working in the oil business as owners of a seismic-data processing firm for oil drilling. Cruz has said that he is the son of "two mathematicians/computer programmers". In 1974, Cruz's father left the family and moved to Texas. Later that year, Cruz's parents reconciled and relocated the family to Houston. They divorced in 1997. Cruz has two older half-sisters, Miriam Ceferina Cruz and Roxana Lourdes Cruz, from his father's first marriage. Miriam died in 2011 from a drug overdose.

Cruz began using the moniker "Ted" at age 13.

For junior high school, Cruz went to Awty International School in Houston. Cruz attended two private high schools: Faith West Academy, near Katy, Texas; and Second Baptist High School in Houston, from which he graduated as valedictorian in 1988. During high school, Cruz participated in a Houston-based group known at the time as the Free Market Education Foundation, a program that taught high school students the philosophies of economists such as Milton Friedman and Frédéric Bastiat.