WASHINGTON — If the U.S. presidential election were being held outside the country’s borders, Barack Obama would likely win. From a baby in Guinea Bissau named after the Democratic candidate to Palestinian youths cold-calling American voters from the Gaza strip, “Obamamania” has taken hold.That’s not to say the other candidates aren’t getting their fair share of attention. More than ever, it seems, proactive support and interest in the U.S. presidential election is flourishing in the unlikeliest of places.The amount of interest is astonishing,” said Carole Bell, an American living in London and the founder of at least two Meet-Up networking...