Andrew McCarthy: Triangulating Manafort -- Obama, Clinton and Ukraine

It is in connection with Paul Manafort that we encounter some genuine collusion targeting the 2016 campaign: willful collaboration among foreign governments, the Obama administration, and the Clinton campaign.

Just a week after the campaign introduced Carter Page as a Trump foreign policy adviser, it announced that Manafort had been brought on board, too. The consultant was an old political hand, experienced managing the rough-and-tumble of a convention fight.

Manafort had longstanding, lucrative political consulting (and other business) arrangements with Ukrainian and Russian oligarchs who had Kremlin ties. These arrangements...