Iran blames america. Youve proved to be a liar. You are not seeking to negotiate. If you did we would have negotiated. The head of americas Border Protection agency steps down amid outrage over the treatment of children being detained. Also on the programme. Tomorrow, in miami, it all begins. The first televised debates. 25 democrats lining up for 2020 and the right to challenge donald trump. The five hottest heat waves in europe since records began have all come in the last 20 years. There is another coming this week. And it is going to be a scorcher. Hello, i amjane 0brien in washington, Christian Fraser is in london. Stung by. Stung by criticism from his rival jeremy hunt, that he was trying to slink into number 10 via the back door, mrjohnson is suddenly more visible and hes commited to leaving the eu by the new deadline. If i become pm, he tweeted, we will leave the eu on 31st 0ctober, deal or no deal. Today i have asked jeremy hunt whether he will also commit to this date, no mat