Republican Representative Thomas Massie said that President Donald Trump’s decision to bomb three nuclear sites in Iran is “unconstitutional” as the president faces stark division within his own party.Newsweek reached out to the White House via email Saturday night for comment.Why It MattersIsrael launched attacks against Iran’s capital city of Tehran earlier this month in what it called a “preemptive strike” and warned its citizens of retaliatory bombings from Iran.Military tensions between the two countries have rapidly escalated in the days since as Trump continues to double down that Iran cannot have a nuclear weapon.What To KnowTaking to X, formerly Twitter, after Trump announced the strikes, Massie said, “This is not Constitutional.”Trump announced the military move on Truth Social saying the U.S. attacked Fordow, Natanz, and Esfahan in Iran. The president said all planes are now out of Iran air space and “safely on their way home.”Massie has been a staunch opponent of striking Iran, previously saying he would not back a move to get involved in a “regime change war.” Other Republican leaders like Lindsey Graham have urged Trump to go “all in” on Iran.This is a developing story that will be updated with additional information.