Graham, known as a senator with an extremely aggressive stance in foreign policy, vigorously fought just a few weeks ago against Congress deciding whether U.S. President Donald Trump has the right to attack Iran without approval from this legislative body. He advocated this position despite the fact that, according to the U.S. Constitution, only Congress has the authority to declare war. However, when a truce came into play, Graham is now calling for Congress to be involved. "At this early stage, I am extremely cautious about what is fact and what is fiction or misrepresentation. That is why the congressional review process, like the one the Senate conducted to examine the Iran deal, is a reasonable way forward. Fair and demanding questions with full opportunity for explanation, along with a healthy dose of transparency, are usually the right recipe for understanding any issue," wrote Graham. He added that he always prefers diplomacy, although it should be noted that he was one of the biggest proponents of war with Iran, even criticizing the Trump administration for not further expanding operations against this country.