President Donald Trump has pushed the United States to the brink of war with Iran even as aides urge him to focus more on voters' economic worries, highlighting the political risks of military escalation ahead of this year's midterm elections. Trump has ordered a huge buildup of forces in the Middle East and preparations for a potential multi-week air attack on Iran. But he has not laid out in detail to the American public why he might be leading the US into its most aggressive action against the Islamic Republic since its 1979 revolution. Trump's fixation on Iran has emerged as the starkest example yet of how ... (full story)