There is no Republican vision. They do not exist,. They are under the control of the super wealthy who do not care about the environment, laws, rules or regulations. They direct Trump. All they care about is money and power. Just as Trump picked the Repubs because he thought they would be easy to take over, the wealthy exploited the same weakness.
Johnson has gavelled the House 31 days this year. He has the worst "do nothing" Congress of all time. That is because the real governing is done in the dark by the board of the super-rich.
Vance hated Trump, yet he got on the ticket. Wealthy donors made that decision. Trump complied.