Ukraine stuck in a tug-of-war between Russia and the West

After years of war with Russia and with a new president at the helm, Ukraine has played a crucial role in the struggles between Russia and the West, before it was drawn into U.S. politics and President Trump's impeachment. NewsHour Weekend looks back at our Ukraine coverage with Simon Ostrovsky, who's reported often from the region with Pulitzer Center support. He joins Hari Sreenivasan for more.