The cost of the United States’ war in Iran has risen to US$37.5 billion so far, US Defence Secretary Pete Hegseth said on Tuesday, as he faced sceptical lawmakers for the first time since heavy bombings resumed to seek urgent funding for the unpopular conflict. With just six months before midterm elections in which US President Donald Trump’s Republicans may face an uphill battle to keep their House of Representatives and Senate majorities, Democrats are riding high in public opinion polls as...