Reactions to White House plans to meet with Kim Jong-Un highlight the damaging impact of partisan polarization and obsessive Trump hatred.

Had Barack Obama arranged to negotiate with the brutal North Korean dictator, some of the same Democrats now deriding Trump would have hailed their hero as a bold visionary, deserving of a second Nobel prize.

Some of the voices that blamed Trump for incendiary rhetoric leading toward needless war now attack him for reckless concessions in pursuit of peace. Of course, this new initiative could still collapse in a U.S. setback, but Americans should give the president broad support to strengthen his hand. Yes, Trump true-believers can sometimes embarrass themselves by claiming the president can do no wrong, but his die-hard critics damage our politics by insisting that he can do no right.