The order is based on a "most favored nation" pricing model, which is similar to a policy Trump pushed in his first administration.

By Catalina Jaramillo and Kate Yandell In signing an executive order aimed at reducing U.S. drug prices, President Donald Trump said some prices would be cut in half or more “almost immediately.” But the order is light on details of how the plan would be implemented.

The Trump administration is already gearing up for another round of Medicare drug price negotiations, while OpenAI launched a new evaluation tool.