perhaps all the others are distractions and a real contender, like Vance, would be offline.
Actually, I tried to look up TrumpVance.com on WhoIs and the domain does exist. It just doesn't have a landing page.
Looks like it was registered in 2022.
Domain Name: trumpvance.com
Registry Domain ID: 2693704678_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.godaddy.com
Registrar URL: https://www.godaddy.com
Updated Date: 2022-05-03T20:29:25Z
Creation Date: 2022-05-03T20:29:25Z
Registrar Registration Expiration Date: 2027-05-03T20:29:25Z
Registrar: GoDaddy.com, LLC