Meacham on Trump: 'Is this the person you want sitting there at the pinnacle of power?'
01:46Jon Meacham responds to Trump's Twitter attacks on Fmr. U.S. Ambassador Marie Yovanovitch and the impeachment inquiry. Meacham says some Republican's minds "have been captured by the pursuit of power. They've decided that taxes and judges are worth putting up with this kind of behavior. And it's not American. It's not dignified."