WASHINGTON, DC - JANUARY 06: U.S. President Donald Trump is seen on a screen as his supporters cheer during a rally on the National Mall on January 6, 2021 in Washington, DC. Trump supporters gathered in the nation's capital today to protest the ratification of President-elect Joe Biden's Electoral College victory over President Trump in the 2020 election. (Photo by Samuel Corum/Photo by Samuel Corum/Getty Images)

WASHINGTON (AP) — 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 whether further limits can be put on presidential authority to make sure there are no repeats of 2020.