WASHINGTON (AP) - The CEO of the nation's third largest pharmaceutical company is resigning from the President's American Manufacturing Council citing "a responsibility to take a stand against intolerance and extremism."President Donald Trump lashed out almost immediately Monday at Merck CEO Kenneth Frazier on Twitter, saying Frazier "will have more time to LOWER RIPOFF DRUG PRICES!"Frazier's resignation comes shortly after a violent confrontation between white supremacists and protesters in Charlottesville, Virginia, that left one person dead and 19 injured.