How did Canadian Prime Minister Justin Trudeau, the world’s favorite liberal mascot — a feminist man, with movie-star good looks, a 50 percent female cabinet and a political lexicon that has replaced “mankind” with “peoplekind” (making millions swoon) — end up looking silly, diminished and desperate on his trip to India this week? Trudeau’s eight-day India expedition has been an absolute fiasco. Hours before meeting with Prime Minister Narendra Modi, his journey hit a dead end when the Canadian high commissioner invited a Sikh extremist named Jaspal Atwal (who has been convicted of attempted murder and was previously affiliated with...