Detailed text transcripts for TV channel - CNN - 20190611:20:27:00
>> i think he's the weakest mentally. obama took him off the trash heap. he's even slower that he used to be. he's a loser. >> reporter: the president has continued phoning aides and allies early in the morning, with one key question. is biden a threat to his presidency? sources say the president was frustrated after internal campaign polling showed him lagging behind biden in states that will be critical to a 2020 win. and at one point, even doubting if his own campaign's numbers are real. though he claimed otherwise today. >> my poll numbers are great. >> reporter: trump's concern -- >> look...