“Our job is to be as prepared as we can to take him on in any particular instance and that’s why not only will we be up on June 8, as previously reported, but we’re actually going to go on the air earlier,” Guy Cecil, the head of Priorities USA, told Mark Halperin and John Heilemann on Bloomberg Television’s “With All Due Respect.”

Of the $91 million of air time the super-PAC has already reserved, Cecil estimates that roughly one quarter to one third of ads will be positive, with the rest painting Trump in a negative light.

Cecil also estimated that about $40 million will be dedicated to online outreach targeting blacks, Latinos, the Democratic base and millennials.

“That’s going to be a big part of our operation,” Cecil said.