The former White House press secretary told Fox News that Bloomberg's record and language are "offensive and atrocious."
The former Trump campaign manager had been weighing a race against Sen. Jeanne Shaheen (D).
The path forward may not be be with House Judiciary Chairman Jerry Nadler, who Pelosi has lost confidence in, sources say.
The network faced backlash for giving air time to the former Trump campaign manager, a day after he admitted lying to the media.
The CNN host mocks the former Trump campaign manager's fealty to the president.
The CNN host warned it "does not bode well for their impeachment inquiry."
The White House instructed the former Trump campaign aide not to "disclose any conversations" he'd had with the president.
Rob Porter, Rick Dearborn and Corey Lewandowski are all facing instructions from the White House regarding testifying before the House of Representatives.
The former Trump campaign manager appeared in the audience at the president's rally in Manchester.
According to the Mueller report, Trump told his former campaign manager to ask Jeff Sessions to clear the president of wrongdoing and curtail the Mueller probe.