Counterintelligence probe of Giuliani hinges on ties to Ukraine, wealthy foreigners & WH; Pelosi: Trump had a "meltdown" in meeting on Syria; Trump's letter to Erdogan: "Don't be a tough guy! Don't be a fool!"

Federal investigations of Rudy Giuliani includes counterintelligence probe; Democrats speak after meeting with Trump at WH; Trump claims Turkey's invasion of Northern Syria "has nothing to do with us"; House voted 354-60 on resolution condemning Trump's decision to withdraw U.S. troops from Syria; Former senior aide: Pompeo silent when asked to support ambassador targeted by Giuliani; Former senior Pompeo adviser ends testimony after 5 hours; Top U.S. diplomat in Ukraine expected to testify Tuesday; Former WH, admin officials paint damning picture of Ukraine push; Trump's letter to Erdogan: "don't be a tough guy! Don't be a fool!"To learn more about how CNN protects listener privacy, visit cnn.com/privacy Learn more about your ad choices. Visit podcastchoices.com/adchoices