Vice President Harris delivers her concession speech at Howard University. Also, Sen. Sheldon Whitehouse says Congress needs to contain Donald Trump's corruption. And Professor Timothy Snyder shares his outlook for a second Trump term. Rep. James Clyburn, Sen. Sheldon Whitehouse, and Professor Timothy Snyder join Lawrence O'Donnell.

Democratic governors vow to protect their states from Donald Trump. Also, Vice President Harris says we will never give up the fight for our democracy. And authoritarian world leaders praise Trump's victory. Rep.-elect Eugene Vindman, Caroline Randall Williams, Ruth Ben-Ghiat, and Michael Beschloss join Ali Velshi.