Newt Gingrich is officially in. "Today I am announcing my candidacy for President of the United States," he announced on Twitter. Gingrich also posted a YouTube video, which is in the gallery at left. The move is no surprise, notes the Huffington Post. After all, he named his campaign manager last week and opened a headquarters in Atlanta. Politico has an early look at strategy, the gist being that he will need to compete in all the early primary states, unlike some of his rivals.