Actually using import taxes – tariffs – to finance a big chunk of the federal government would be a painful and perilous undertaking, budget wonks say.

U.S. President Donald Trump is not interested in talking with Elon Musk, a White House official said on Friday, signaling the president and his former ally might not resolve their feud over a sweeping tax-cut bill any time soon.

Congressional Republicans are siding with Donald Trump in the messy divorce between the president and Elon Musk, an optimistic sign for eventual passage of a tax cut bill at the root of the two billionaires’ public feud.