Capitol riot hearings raise questions of presidential power

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. (AP Photo/Jacquelyn Martin)

The House Jan. 6 committee’s investigation of the aftermath of the 2020 presidential election and the events leading up to the U.S. Capitol insurrection is raising questions about former President Donald Trump’s role and whether he committed crimes.

The various schemes and talking points that witnesses have revealed also highlight what a president has the authority to do.

Government and legal experts say the bigger question is: Can further limits be put on presidential authority to make sure there are no repeats of 2020 in future administrations?