Weekend Roundup

Another departure from the White House -- as John Bolton resigns as National Security Advisor. President Trump announces a plan to target vaping. Plus -- the latest from the campagin trail following Thursday's Democratic debate. Correspondent Bill Rehkopf will have these stories and more on the CBS News Weekend Roundup. See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.