Former U.S. President Donald Trump warned that the United States would "wipe out" Iran "fast" if Tehran restarts its nuclear program. In remarks made on 28 July, Trump said Iran had been sending “nasty signals,” but did not elaborate on what actions he considers provocative. Trump’s comments revive tensions over Iran’s atomic ambitions, which were curtailed under the 2015 nuclear accord that the United States exited in 2018 during his administration. Iran has since expanded its enrichment activities, and international negotiations to restore limits have stalled. There was no immediate response from Iranian officials. Trump, widely seen as a leading contender for the 2026 presidential race, did not detail potential military steps or provide evidence of recent Iranian nuclear activity.