Four and a half years after britain voted hello, and welcome to bbc news. Four and a half years after britain voted to leave the europen union, Boris Johnson will travel to brussels this week to meet European Commission president ursula von der leyen, in a last ditch effort to salvage a post brexit trade deal. It comes after a 90 minute phone call between the two leaders failed to produce a breakthrough. A senior uk government source warned that a deal may not be possible. Our political editor, Laura Kuenssberg has this report. Its not always good to talk. The Prime Minister tonight spent more than an hour in conversation with the eu chief, but they seem only to have agreed on what they disagree on. A statement from both of them said. In other words, months of technical negotiations have hit the wall. So instead, the Prime Minister will leave westminster to go to brussels for the first time in months, his team warning that a deal may not happen at all. We are at a critical moment in th