From centrists worried about Medicaid cuts to conservative hard-liners demanding steeper spending reductions, Senate GOP leaders face a tricky balancing act.

Top Republicans have brushed aside concerns that Donald Trump’s landmark tax bill risks being derailed by his extraordinary clash with Elon Musk as the party closes ranks around the US president. The two men fell out in dramatic fashion on Thursday after a spat triggered by disagreements over the president’s “big beautiful bill” erupted into an all out feud that some feared could scupper the legislation.