Trump Phones, And Pfizer Reverses Price Hikes. But Why?

Trump Phones, And Pfizer Reverses Price Hikes. But Why?

Source: 
Forbes
snippet: 

Pfizer, one of the world's largest drug companies, reversed price hikes it had taken on dozens of medicines last week after a phone call between the company's chief executive, President Donald Trump, and the Secretary of Health and Human Services, Alex Azar.