The orginial story was in People Magazine, which isn't exactly a paradigm of hard-hitting investigative journalism. It's more the type of publication that prints stories from celebrity publicists verbatim without much fact checking. The only question I have is who would have even approached People to get a little-known Senator's name in the running? Sullivan's staff denies talking with People.
It's Trump. He had his people funnel down names like Sullivan to the tabloids he's been close with for decades in order to rile up more interest in the process and create further distractions.