Anderson Cooper 360

New Forecast: Dorian Could Approach Hurricane Strength As It Spins Toward Puerto Rico; Sources: Pres. Trump Privately Clashed With G7 Leaders Over Reinviting Russia Into Alliance; Pres. Trump: Let Russia Back Into G7; Where Does The Impeachment Push Stand?; What A Bank Says About Pres. Trump's Tax Returns; Deutsche Bank Has Tax Returns But Doesn't Say If They Are Pres. Trump's; Biden Unveils New Campaign Ad; Biden Campaign Launches New TV Ad In Iowa Focused On Health Care; Wash. Post: Barr Books Pres. Trump's DC Hotel For $30K Party; Wash. Post: Barr Books Pres. Trump's DC Hotel For $30K Holiday Party Raises Questions About Ethics, DOJ's Independence; Pres. Trump On His GOP Challengers; Pres. Trump On GOP 2020 Challengers: "I Should Be Able To Take Them!"; Pres. Trump On GOP 2020 Challengers: "Three Stooges Running Against Me" (Only 2 So Far); Gov. Kasich On A Potential Run Against Pres. Trump: "I Don't See Path Right Now" via Knit