What is the main idea in this paragraph pls copy and paste it as the answer One of the President’s most important functions is not in Article II—it’s in Article I, which talks about Congress! (The Constitution can be sneaky that way.) Congress is the lawmaking branch of government, but the Constitution requires the president’s approval before a bill can actually become law. The president either signs the bill to approve it or rejects the bill with a veto and sends it back to Congress. Donald Trump is the current president of the United States. He was elected in November 2016 and took office on January 20, 2017.