AdvertisementWhy is populism, broadly defined, on the brink of historic victories around the world, while populism in the form of President Donald Trump’s Republican Party is poised to lose one or both houses of Congress in the United States?The troubles Trump’s Republicans face are not a mystery. It was always unlikely that Republicans would maintain their hair’s-breadth House majority. Stay informed.Stay ahead. Join Washington Examiner for unlimited access to the news, analysis, and commentary that matter most. Trusted reporting.Unlimited access. Subscribe for full access to Washington Examiner coverage, expert political analysis, and subscriber-only journalism. Get Unlimited Access › Already a...