The sight of a Capitol coup may have been new, but the smell of democracy’s decline certainly wan’t. Last week’s harrowing episode reeked of the odor that arises whenever bad actors have been exposed in politics or law enforcement. Ignore the stench of institutional rot! defenders of crooked cops and corrupt politicians have always told the public. Institutions shouldn’t be judged by a “few bad apples!” Until they turn into terrorists, I guess. And even then … In many accounts of the Capitol siege, the small army of fanatical followers of a wanna-be tyrant were often described as invaders. Exc…