The story of Rome’s fall is both complicated and relatively straightforward yet it eerily resembles America: The state became too big and chaotic; the influence of money and private interests corrupted public institutions; and social and economic inequalities became so large that citizens lost faith in the system altogether and gradually fell into the arms of tyrants and demagogues. If all of that sounds familiar, well, that’s because the parallels to our current political moment are striking. Edward Watts, a historian at the University of California San Diego, has just published a new book titled Mortal Republic that carefully lays out what went wrong in ancient Rome — and how the lessons of its decline might help save fledgling republics like the United States today.