Musk in response threatened to decommission SpaceX’s Dragon spacecraft, but later walked it back. The feud began over Musk’s displeasure with the Trump-backed “big, beautiful bill,” which cleared the House last month. The bill would cut electric vehicle credits and could hurt his other company, Tesla.

Musk used X—formerly Twitter—to help rebuild Trump's public image and support his presidential run. What happens if he turns it against the president?