Vance sees kissing Trumps ass as the easiest way to be on the ticket for Fuhrer next election cycle. If Trump wins or loses he won't be in physical/mental shape for the next election and Vance sees sticking his nose intestine deep up Trump's ass and using the next 4 years as his sounding board to say whatever smoothbrained maga wants to get his name out there.
It's his Ace Ventura "put me in coach" moment.
And the beauty is that all the maga idiots wear their loyalties on their sleeve by covering their homes with tacky Trump shit. Keep an eye on those homes and vehicles and if something even remotely looks sketchy, call the police. And keep calling.