More than a month after their initial social media bluster, Elon Musk has announced the formation of a new U.S. political party in response to U.S. President Donald Trump signing his sweeping tax and spending bill into law.

Musk, who had been a close ally of the president, announced on X Saturday that he would be forming the “America Party.” His decision was based on an X poll that he posted on July 4, where he asked users on the social media website if there should be an America Party.