Elon Musk is pledging to pour US$45 million a month into a pro-Donald Trump political group, a move that would flood the Republican nominee’s reelection effort with cash through the November election.

Musk’s planned cash infusion could help build Trump’s fundraising advantage over President Joe Biden, who has suffered from a donor revolt in recent weeks, with some calling for him to step aside for a new nominee. The billionaire entrepreneur endorsed Trump in a post on X after the former president was wounded while addressing a rally in Butler, Penn., on Saturday evening.