Hillary does not intend to make him her VP. She’ll pick Richardson. She’s cut a deal with Obama: “Look - you’re only 45 years old. In eight years, you’ll be the perfect age, and you’ll have more Senate experience under your belt. You’ll no doubt have chairmanship experience too. As a wildly successful and popular two-term president, I’ll endorse you wholeheartedly and will campaign for you, along with throwing big bucks to your campaign”
Senate experience seldom helps a presidential candidate. Hillary will pick a VP from a purple big state like Ohio or Florida.