Since retiring in early 2025, Mitt Romney avoided national politics — until his old friend Susan Collins needed help.Former Sen. Mitt Romney has made his first foray back into national politics since leaving the Senate, hosting a fundraiser on Wednesday for his former colleague Sen. Susan Collins.It was the first time the former Utah senator directly reengaged with Washington politics since leaving office at the beginning of 2025. And it shows how seriously the 2012 Republican presidential nominee and sharp critic of President Donald Trump — who has prized privacy in his retirement — wishes to preserve a group of...