What do senior British politicians gain from boycotting the state banquet for Donald Trump?

Politics Explained: John Bercow and Jeremy Corbyn among prominent figures who turned down invitations to Buckingham Palace event

Donald Trump will attend a state banquet at Buckingham Palace on Monday night – the first time he has been honoured with such an event since he became president.

The Republican’s only other official visit to the UK – last July – was not a full state visit and so did not include the usual dinner hosted by the Queen.

Tonight, however, she will join with other members of the royal family and an array of government ministers to welcome the US president.