This week, Joe Biden travelled to Israel – becoming the first US president to visit the country at war. He set out to show United States support for Israel, ease the humanitarian disaster unfolding in Gaza, win the freedom of hostages held by Hamas, and prevent a wider regional conflict that might draw in the US. So with stakes this high, how did he perform? And what does this mean for Biden politically? This week Jonathan Freedland is joined by Julian Borger, the Guardian’s world affairs editor, who is in Jerusalem and has been following the trip and the reactions to it.