a second whistleblower has come forward with information about trump. mark zaid, says his team rmt respects a second person who works in the intelligence community. he says his client has firsthand knowledge backing claims by the first whistleblower, who raised the alarm between mr. trump and zelensky. >> this is likely to undercut republicans who called the first whistleblower's claims hearsay. the first whistleblower claimed the president abused his official powers, digging up dirt on joe biden. and the white house tried to cover that up. the president has denied doing anything improper. cnn's jeremy diamond has more from the white house. >> reporter: there is now a second whistleblower from within