Senate Majority Leader John Thune (R-SD) defended President Donald Trump‘s “historic” decision to strike Iran’s three nuclear sites.

The United States struck the Fordow fuel enrichment plant, as well as the Natanz and Isfahan nuclear facilities, on Saturday. Trump confirmed that the three sites were “totally obliterated” by six 30,000-pound bunker-buster bombs and 30 Tomahawk cruise missiles. Despite allegations from Democratic lawmakers that Trump violated the Constitution by ordering the strike without consulting Congress, Thune argued the president was “perfectly within his authority” while on Fox News’s America’s Newsroom on Tuesday.