President Donald Trump and Elon Musk are trading public insults after the Tesla billionaire suggested he'll create a new political party, "America Party."

Elon Musk said he’s carrying out his threat to form a new political party after his fissure with President Donald Trump, announcing on social media that he would form the America Party in response to the president’s sweeping tax cuts law.

Musk said on Saturday that he was starting the “America Party” after Trump signed his signature bill of tax breaks and spending cuts. The bill was criticized by Musk and fiscal hawks for raising the national deficit, while it was criticized by Democrats for its massive cuts to Medicaid.