In London for the NATO summit, President Donald Trump found himself not in the typically central and influential role for an American president among his duly elected peers, but as the butt of jokes by fellow world leaders mingling at a Buckingham Palace reception. Back home, House Democrats faced down their GOP colleagues as they forged ahead this week with the historic step of drafting articles of impeachment. The Supreme Court is expected to imminently be called upon to resolve a burgeoning constitutional crisis over checks and balances. And voters? They're as divided as ever, not just in choice of candidates, but in their very worldviews.

The nation is in a December meltdown that is causing polarization and pain for both parties and all three branches of government as well as for America and its allies. Distrust and dissension were on full display this week abroad and on Capitol Hill.

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