The VP nominee will be someone nobody is currently discussing.
What does he bring to the ticket? He's white and from a safe state I don't see why Clinton would pick him in any case.
[Going to copy Mister Mets' sound defense of a Schatz VP pick]
He's a white guy in an interracial marriage (his wife is Asian.)
He's young and liberal, which can help with the base.
His record is just long enough that he doesn't appear too inexperienced, but there isn't anything distracting that would scare centrist voters.
A Lieutenant Governor appointed to the Senate, he knows when to be the running mate and when to be the mainattraction.
He was Chair of a Senate Subcommittee on Communications, Technology, and the Internet, which helps establish him as a policy expert on something important and modern.