Clinton Campaign Manager: Prospect of More DNC Emails Being Released Was ‘Concerning’

Robby Mook was interviewed this morning on "GMA."

Mook added that it was "also very troubling" that Republican presidential nominee Donald Trump appeared to be pushing for a pro-Russian platform. Trump has praised Putin and recently declared that, if he becomes president, the United States would defend fellow NATO countries only if the nations in question were contributing their fair share to the alliance’s budget – a stance that would bode well for Russia.

"Obviously, this is a concerning situation," Mook said.

Trump’s campaign chairman Paul Manafort has called the accusations that Trump colluded with Russia in the DNC email hack “absurd.”

Mook was optimistic Democrats would come together in support of Clinton despite the email controversy, which has triggered protests and forced Democratic National Committee chairwoman Debbie Wasserman Schultz to resign from her post, effective later this week.

“The contrast between our convention and the Republican’s could not be greater," Mook said. “We are working hard to unify this party.”