While Ron has always believed that corporations in the private sector should run the government, he apparently wouldn’t support Trump (a businessman) entering politics.
As fans of Parks and Rec will know, Ron Swanson was famously a libertarian and didn’t really side with either Republicans or Democrats.
Swanson isn’t a fan of politicians and government, so he would likely feel betrayed by Trump’s choice to enter the world of politics.
But Ron’s a patriot, so he would still choose to vote for somebody, even if neither are his first choice.