He's tempted...
But he also might lose votes if he chooses to side with you.
How do you assure him that you'll make up the difference?

We can throw the support of a Super-PAC (Political Action Committee) connected to our firm behind his re-election campaign

Get one of your lobbyists, who used to be a beloved Senator from the same state, to make a public statement supporting the campaign, and insisting that a vote for your candidate is a vote for his legacy's continuation