FILE - With the White House in the background, President Donald Trump speaks at a rally in Washington, Jan. 6, 2021. The January 6 committee investigation of the aftermath of the 2020 presidential election and the events leading up to the capitol insurrection raise questions about former President Donald Trump's role and whether he committed crimes. As illuminating have been the various schemes and talking points that have come up from witnesses that highlight what a president has the authority to do. Government and legal experts say the bigger question is can limits be put on that presidential authority to make sure there are no repeats of 2020 in future administrations. AP Photo/Jacquelyn Martin, File