is also under custody. lord mandelson, a former labour cabinet minister, has urged peers to not "throw in the towel early" when they debate the process of triggering brexit. the government has warned lords not to block the legislation which will start the uk's withdrawal from the eu. the house of lords will begin debating the article 50 bill tomorrow. with me is our political correspondent tom bateman. what does lord mandelson what the laws to do? think it is worth saying that for those who enjoy the spectator sport of watching house of lords debates, they are in for a treat in the next few days. nearly 200 peers of the realm of talk in this debate, that is approaching i think in record numbers. that gives you a sense of the way in which many of the peers want to influence this process as this bailout passes to the house of lords. the government's