Speaker Nancy Pelosi (D-Calif.) on Friday invited President Trump to deliver his State of the Union address on Feb. 4. "In their great wisdom, our Founders crafted a Constitution based on a system of separation of powers: three co-equal branches acting as checks on each other. To ensure that balance of powers, the Constitution calls for the president to 'from time to time give to the Congress Information of the State of the Union,'" Pelosi wrote in a letter to Trump.