According to an analysis by Insider, Musk has given more money to Republicans than Democrats.
According to the data, he has given over half a million dollars to the Republicans and the Democrats. In March of 2015, Musk donated $50,000 to the mayor of Chicago.
Two broadly left-wing referendum campaigns in California received donations from Musk.
The billionaire has given more than a million dollars to politicians in the last two decades.
Musk has called himself a Democrat in the past, but urged independent voters to back the Republicans in the upcoming elections.
Independent voters are the ones who decide who's in charge because hardcore Democrats or Republicans don't vote for the other side.
While it's true that I've been under unfair and misleading attack for some time by leading Democrats, my motivation here is for centrist governance, which matches the interests of most Americans.
Musk has previously said he was socially liberal and fiscally conservative, but is adamant he is not a conservative.
The world's richest man only gave to the Democrats in 2015, but the next year he gave to the GOP.
Musk voted for Mayra Flores, who lost the seat five months later. The billionaire said that he had voted for the first time in his life.
He set up a political action committee that gave half of its $30,000 to Democrats and the rest to Republicans.
Insider asked Musk for comment, but he didn't reply.