The Berwick MP Sir Alan Beith is marking 40 years in parliament.
He was elected as a Liberal in 1973. He's now one of the most senior figures in the Liberal Democrats.
Sir Alan will step down at the next general election.
He spoke to Helen Ford for our political programme Around The House. Watch his interview here:
More top news
After a wet and windy day things turn colder from tomorrow.
Holyrood finance minister attacks Hammond's "funny money" as Tories question need for tax rises
Chancellor Philip Hammond has delivered his Budget which he believes will help build "a Britain fit for the future".