Foreign affairs
Cruz said in 2025 that he first ran for Senate in 2012 "with the stated intention of being the leading defender of Israel in the United States Senate". He has said that "those who hate Israel hate America", and in reference to Genesis 12:3 said: "Biblically, we are commanded to support Israel". In 2014, he told the Zionist Organization of America, "standing for Israel is a deep passion of mine".
On January 5, 2017, Cruz voted in favor of a House resolution condemning UN Security Council Resolution 2334, which condemned Israeli settlement building in the occupied Palestinian territories as a violation of international law.
In June 2017, Cruz co-sponsored the Israel Anti-Boycott Act (s. 720), which would make it a federal crime for Americans to encourage or participate in boycotts against Israel and Israeli settlements in the West Bank if protesting actions by the Israeli government.
In October 2025, Cruz criticized growing antisemitism on the right and warned of a resurgence of replacement theology underpinning anti-Jewish and anti-Israel sentiment.
Cruz has been an adamant opponent of the Joint Comprehensive Plan of Action, a 2015 international nuclear agreement with Iran negotiated by the U.S. and other world powers, calling it "catastrophic" and "disastrous".
In June 2025, during the Iran–Israel war, Cruz told Fox News: "I think it is very much in the interest of America to see regime change", and that there is "no redeeming the Ayatollah". In an interview with Tucker Carlson, he said that Iran had tried to assassinate Donald Trump, and that a Bible phrase saying that those who "bless Israel" will be blessed justifies supporting Israel's attacks on Iran. Cruz was unable to quote the passage or name its location when pressed by Carlson. Carlson criticized Cruz for not knowing the population of Iran, telling him: "You don't know anything about the country whose government you want to overthrow". Cruz initially told Carlson, "We are carrying out military strikes today", before appearing to correct himself: "Israel is leading them, but we're supporting them." He accused Carlson of having a "weird [...] obsession with Israel", which Carlson took as an allegation of antisemitism.
Cruz has called for collapsing the Iranian regime, comparing it to the Cold War-era strategy used against the Soviet Union, and has criticized the Obama-era Iran nuclear deal, pushing for stronger actions against Iran.
Cruz has been a consistent critic of China. In early January 2017, Cruz, Texas governor Greg Abbott and some others met with Taiwanese president Tsai Ing-wen. Cruz criticized the People's Republic of China after it reportedly made a statement asking members of Congress not to meet with Tsai.
In August 2018, Cruz and 16 other lawmakers urged the Trump administration to impose sanctions under the Global Magnitsky Act against Chinese officials responsible for human rights abuses against the Uyghur Muslim minority in western China's Xinjiang region. They wrote, "The detention of as many as a million or more Uyghurs and other predominantly Muslim ethnic minorities in 'political reeducation' centers or camps requires a tough, targeted, and global response."
American video game company Activision Blizzard punished a Hong Kong-based professional gamer for supporting pro-democracy Hong Kong protests. Cruz accused Blizzard and Apple of censorship. He co-signed a letter to Activision Blizzard CEO Bobby Kotick that read, "As China amplifies its campaign of intimidation, you and your company must decide whether to look beyond the bottom line and promote American values—like freedom of speech and thought—or to give in to Beijing's demands to preserve market access."
On July 13, 2020, the Chinese government sanctioned Cruz and three other U.S. politicians for "interfering in China's internal affairs" by condemning human rights abuses in Xinjiang. On August 10, 2020, the Chinese government sanctioned Cruz and 10 other Americans for "behaving badly on Hong Kong-related issues".
In 2022, Cruz sharply criticized the Chinese government for its detention of Houston resident Mark Swidan, who had been held for over ten years. The United Nations and U.S. government considered Swidan wrongfully detained. He was released in 2024.
Beginning during his time as a Dublin, California, city councilman, Eric Swalwell was targeted by a Chinese woman believed to be a clandestine officer of China's Ministry of State Security. Swalwell's general relationship with a suspected Chinese agent, Christine Fang, has been characterized as problematic, particularly given his high-profile role as a member of the House Intelligence Committee. Cruz tweeted, "More than once, I've said 'screw the Chinese communists'. Little did I know how closely Swalwell was listening."
In 2015, Cruz voted for the USA Freedom Act, which reauthorized the USA Patriot Act but reformed some of its provisions.
In September 2016, Cruz backed the Obama administration's plan to sell more than $1.15 billion worth of weapons to Saudi Arabia.
Cruz has called the Nord Stream II natural gas pipeline a threat to the security of Europe and the U.S. In December 2019, he and Senator Ron Johnson wrote a letter to Edward Heerema, the owner of the offshore pipe layer Allseas, to warn him of sanctions if Allseas did not suspend its work on the pipeline, which would deliver natural gas from Russia to Germany. Allseas suspended the work a few days later. In December 2020, the Russian pipelaying ship Akademik Cherskiy continued pipelaying. In January, another pipelayer, Fortuna, joined forces with the Akademik Cherskiy to complete the pipeline. On June 4, 2021, Putin announced that the pipelaying for first line of the Nord Stream II was fully completed. On June 10, the pipeline's sections were connected. The second line was completed in September 2021.
A co-sponsor of the 2019 resolution to commemorate the Armenian genocide, Cruz said that while Turkey is a NATO ally, "We should never be afraid to tell the truth, and alliances grounded in lies are themselves unsustainable."
In October 2021, Cruz posted a tweet criticizing Australia's Northern Territory's vaccine mandates. Chief Minister of the Northern Territory Michael Gunner's response to the tweet went viral quickly, garnering near universal support from Australians.
In March 2023, Cruz voted against repealing the Authorization for Use of Military Force (AUMF) in Iraq.
Cruz appears in the directory of Peter Thiel's organization Dialog.