Former House Speaker Newt Gingrich is retooling his presidential campaign -- again.
He's laid off one-third of his staff, including his campaign manager.
His campaign is short on cash and he has not won many delegates.
Now they'll focus on low-cost social media.
A Gingrich spokesman says their new strategy is to prevent former Massachusetts Gov. Mitt Romney from winning the 1,144 delegates he needs to win the nomination.
Gingrich says he will personally call delegates to ask for their support at the Republican National Convention in August.
However, Gingrich said if Romney does gain the delegates he needs to win the nomination before the convention, the former House speaker will support him.