22:00Biggest Russian bombardment on Ukraine yetBiden accuses Trump of being un-American and unpatrioticBBC Radio 4 Duration: 45 minutes Fri 4th Sep 2020, 22:00 on BBC Radio 4 LWAvailable for over a yearListen nowIn depth reporting, intelligent analysis and breaking news from a global perspectiveGenresNewsBrandBiggest Russian bombardment on Ukraine yet Source: BBC Online