The impeachment countdown is on. Democrats are lurching inexorably toward trying to dump President Trump, even if they won’t admit it now. Conventional wisdom says that the Dems, who are about to take over the U.S. House, are proceeding cautiously, and will be reluctant to launch into impeachment proceedings. Nancy Pelosi is trying her best to restrain herself. Don’t believe it. Democrats would like nothing better than to oust Trump. If Robert Mueller provides them with the ammo, the party won’t be able to resist. Left-leaning voters are pressuring lawmakers to act, thinking about the months long torture that impeachment...