U.S. Secretary of State Marco Rubio has defended President Donald Trump's decision to wage war against Iran, stating that it was a necessary measure to thwart Tehran's nuclear aspirations. Speaking in Florida on Sunday, Rubio asserted that Trump had identified a genuine threat and worked to prevent Iran from acquiring a nuclear weapon. While acknowledging the unpopularity of the decision, Rubio underscored its necessity for national security. Diplomatic efforts, according to Rubio, are ongoing but he expressed skepticism about imminent progress due to what he deemed as unrealistic and outrageous Iranian demands. The comments come after Trump dismissed criticism linking the U.S.-led war on Iran to the Republican Party's midterm election defeat. Trump reiterated his belief that a nuclear Iran would pose an existential threat, stating that if Tehran were to acquire such a weapon, they would risk destroying the world. In a phone interview with CNN, Trump suggested that resuming strikes could be avoided if progress is made in negotiations and a strong agreement is signed. Meanwhile, Iran's Foreign Minister Abbas Araghchi has called on the White House to make its own decision regarding the war, citing American voters' choice in the midterm elections. Tehran has proposed ending hostilities in exchange for U.S. compliance with certain conditions, including the reopening of the strategic Strait of Hormuz to commercial shipping. Trump is scheduled to meet Qatari Prime Minister and Foreign Minister Sheikh Mohammed bin Abdulrahman bin Jassim Al Thani at the White House on Monday. Rubio has also refuted speculation that he may resign as top U.S. diplomat to pursue higher office in 2028.