Trump faces fresh questions over ties to 'humanitarian' Putin

US President Donald Trump's pivot away from Ukraine has triggered fresh questions about his attachment to Russian leader Vladimir Putin, the man a top American envoy flattered on Wednesday as a "humanitarian. Trump has cast his dealings with Putin as part of a mega-deal that has secured the release of American detainee Stephen Hubbard -- and which Trump says will end Russia's war on Ukraine. FRANCE 24's Gulliver Cragg reports from Kharkiv.