On December 31, 2020, Tommy Raskin, the only son of Maryland congressman Jamie Raskin, tragically took his own life. Seven days later, on January 6, 2021, Congressman Raskin returned to the House to help certify the 2020 presidential election results when violent insurrectionists led by right-wing extremists stormed the U.S. Capitol and threatened to overturn the election. As a reeling nation mourned the loss of life and lamented the injuries of more than 140 police officers in the attack, Congressman Raskin, a constitutional law professor, was called upon by House Speaker Nancy Pelosi to channel his overwhelming grief-both private and public-into leading the second impeachment effort against President Donald Trump. In Unthinkable, Congressman Raskin discusses this startling convergence of personal and political traumas. Going inside the Capitol, he recounts the horror of January 6, a day that he and other Democrats had spent months preparing for under the correct assumption that they would encounter an attempted electoral coup by an ungovernable president. Yet on that day he faced the one thing he had failed to anticipate: mass political violence overrunning the Congress. With a revealing account of leading the team that prosecuted the outgoing president in the Senate, Congressman Raskin shows how close we came to losing our democracy while reckoning with the loss of his remarkable son whose values and memory continually inspired the congressman to confront the dark impulses unleashed by Donald Trump.