TONIGHT, as US and Israeli strikes on Iran continue, the most prominent leader of the Iranian opposition tells us he believes the regime in Thran is collapsing and he wants to lead the transition. You have been out of the country for nearly 50 years. Why would the people want you? >> When Judge John Kunau blocked President Trump's bid to end birthright citizenship, he wasn't prepared for what happened next. >> Death threats. >> Oh, yes. Oh, yes. Dozens of them. Dozens, if not hundreds. >> He's one of 400 fe ...