I could have sworn he was a Bachmann supporter before she dropped out.
He was a Bachmann "supporter" before she dropped out. Bachmann had less of a chance to win the nomination than Santorum. He certainly could not continue to support Bachmann after she dropped out. That would have made for some boring airtime.
You will notice that he never supported anyone that was a major threat to Mitt Romney.
I assume he's still underground for Romney. Mark my words. He will not come out in support of Newt (unless it's obvious there NO WAY Newt can beat Romney)