He seems to be more of a Libertarian than anything.
My first thought was, "Heck, no! Libertarians don't lobby governments large and small to force companies to buy 'carbon credits' from companies like Tesla."
But then I remembered the main reason I didn't vote in 2016 for Gary Johnson, the Libertarian Party candidate: He came out in favor of a carbon tax!!! OMG! Us libertarians ought to be ashamed that the only one on the general ballot against a carbon tax was Big Government Republican Trump. The last thing I wanted was a new carbon tax.
And I'm the one who installed a lot of solar onto my house. So if I of all people can see how bad a carbon tax is, I can appreciate people's unwillingness to accept Musk as their new political savior.