In a meeting room at the Palazzo hotel here over the past week, Newt Gingrich mapped out a detailed strategy that would keep him in the presidential race all the way to the Republican convention in Tampa in August.

The crux of the former House speaker’s new plan is math: a complex analysis of each state’s delegates, how they’re awarded and how many, reasonably, Gingrich can expect to win.

He will focus heavily on upcoming Southern states, where he expects his Georgia roots and conservative rhetoric to play well. And he will step up his attacks on his leading rival, former Massachusetts governor Mitt Romney, for being too liberal to take on President Obama in the fall.