Chief White House Strategist Steve Bannon became the White House flotsam, John Oliver noted at the top of HBO’s Last Week Tonight. Like various TV news programs before him, Oliver showed that infamous Oval Office photo of Trump talking on phone to Russian ruler Vladimir Putin while surrounded by his team of Reince Priebus, Michael Flynn, Sean Spicer, Bannon and Veep Mike Pence – all now gone, save Pence. The truly depressing thing about Chief White House Strategist Steve…