Trump: "I have very good information" about Middle Easterners in migrant caravan; Trump on Khashoggi killing: "somebody really messed up and they had the worst cover-up ever"; Sources: Papadopoulos expected to testify before lawmakers, prepared to discuss nine people; Comey jokes after FBI can't back up Trump's claim of pictures showing Comey & Mueller hugging & kissing; Sources: Papadopoulos expected to testify; Giuliani: Manafort hasn't given Mueller any damaging information about Trump; Trump repeats claim of Middle Easterners in migrant caravan in Mexico but "there's no proof of anything"; Farmers' loyalty to Trump tested by tariffs, trade troubles; Source: U.S. launches cyber operations against Russians meddling in midterms; via Knit