Don’t sell this evil (not stupidity) short. He had $700 million in 2008 - much from the middle east (saudis). He controls TV and according to posters here - Prince Al Waleed’s Fox News is even fawning over him and making fun of “birthers.” Americans sold their liberty for a TV clicker.
You hurt people enough at the pump and there’s nothing any amount of $ can do; they will vote against the incumbent regardless. Unless you’re suggesting the Saudis could pump enough oil to temporarily lower the price, which I don’t see as a realistic option.