After an explosive interview with R. Kelly by CBS This Morning's Gayle King, Kelly finds himself back behind bars for failing to pay child support. King also sits down with two women living with Kelly against the wishes of their families. Former Vice President Joe Biden inches closer to announcing a 2020 presidential campaign. Plus -- Congressional controversy over anti-Semitic comments. CBS News Correspondent Bill Rehkopf will have these stories and more on the CBS News Weekend Roundup.