Perhaps it’s misleading to describe the unfolding events in the US Senate as the ‘impeachment trial’ of Donald Trump. After all, this is a process which may well avoid witness testimony, exclude key documents, and involves jurors who drew their conclusions long ago. Nonetheless, it remains an historic moment, likely to have a major impact on US politics. HARDtalk’s Stephen Sackur speaks to Republican Congressman Don Bacon. Will Republicans come to regret their unwavering loyalty to Donald J Trump?