President Donald Trump holds a news conference with Elon Musk on May 30, Musk's last official day advising the administration. (Tom Brenner/For The Washington Post)

By Amy B Wang

President Donald Trump on Saturday threatened “very serious consequences” against Elon Musk if the tech billionaire and former adviser were to fund any Democratic candidates, the latest escalation in rhetoric in the messy breakup between the two former allies. Subscribe for unlimited access to The Post You can cancel anytime. Subscribe

Since their spectacular falling-out, Musk has floated the idea of launching a new political party and continued to criticize a massive tax and immigration bill that Trump is urging congressional Republicans to pass.

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