With the EU approving a €90bn loan for Ukraine, a surprise visit from Prince Harry, and data suggesting Russian troops made almost no territorial gains in March – are there reasons for optimism in Kyiv? Lucy Hough speaks to senior international correspondent Luke Harding – watch on YouTube

Keir Starmer says it is ‘staggering’ and ‘unforgivable’ that he was not told Peter Mandelson had failed security vetting before taking up the role of US ambassador. The comments follow a Guardian investigation that exclusively revealed Mandelson had initially been denied clearance after a background check by security officials, but that the decision was overruled by the Foreign Office. Lucy Hough speaks to the Guardian’s head of investigations, Paul Lewis – watch on YouTube