WASHINGTON (AP) — Tensions flared as questions mounted at the U.S. Capitol on Tuesday over the Trump administration’s shifting rationale for war with Iran as lawmakers demand answers over the strategy, exit plan and costs to Americans in lives and dollars in what is quickly becoming a widening Middle East conflict . Trump officials arrived at the Capitol for a second day of closed-door briefings, this time with all members of the House and Senate as the administration tries to stave off a