Trump has already begun targeting specific companies like Boeing. On Tuesday, he slammed the aircraft-maker on Twitter about the price tag for a new Air Force One. By Wednesday morning, Trump told NBC's "The Today Show" that he's spoken to Boeing and they're going to work it out.
He also recently negotiated a deal with Carrier to keep jobs in the country.
And it appears he plans to keep on going. In an interview published Wednesday in Time magazine, which just named Trump person of the year, Trump is quoted as telling his new chief of staff Reince Priebus, "Hey, Reince, I want to get a list of companies that have announced they're leaving," he called out. "I can call them myself. Five minutes apiece. They won't be leaving. O.K.?"
Cohn told "Closing Bell" that CEOs need to know the ground rules, and right now they have no idea what to expect from Trump — and he doesn't think Trump has any idea what to expect from himself either.
"There is a big difference between negotiating and leading, between campaigning and governing, and he's going to have to figure that out. This is not a real estate transaction," he said. "It could have some pretty serious, unintended consequences if he keeps this up."
He suggests CEOs be more proactive and ask Trump what he thinks of their particular business and what can be done to keep more jobs in the country.