Russia’s mercenary chief Yevgeny Prigozhin claimed this weekend to have seized control of Bakhmut. The Ukrainian government swiftly denied it, saying their troops still hold some territory, and are fighting to surround Russian forces pinned down there. Russia has thrown wave after wave of mercenaries into the fight for the city, and Ukraine has lost some of its most experienced soldiers. While defenders say morale is high, the grinding battle is taking its toll. Correspondent Nic Robertson meets exhausted and shell-shocked Ukrainian troops near Bakhmut. 

Also on today's show: Vali Nasr, Professor, School of Advanced International Studies, Johns Hopkins University; disability activist Sinéad Burke; Wall Street Journal reporter Rebecca Ballhaus 

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