Donald Trump, the Republican presidential candidate, filed a lawsuit on Thursday – just days before Tuesday’s election – against US broadcaster CBS, alleging it manipulated an interview with his rival Democrat Kamala Harris. Trump is demanding $10 billion in damages and filed the case in a Texas court, seen as a calculated move to ensure the case is assigned to a conservative judge. However, the chances of success are considered low given the US First Amendment, which offers strong freedom of speech protections. The dispute ignited in early October over an interview with Harris on the popular …