GRAND RAPIDS – GOP presidential candidate Newt Gingrich has pulled slightly ahead of favorite son Mitt Romney among voters likely to participate in Michigan's Feb. 28 presidential primary election, according to a poll released today. Gingrich was the choice of 30.75 percent of likely voters, passing Romney, the choice of 28.74 percent, according to the survey of Michigan voters likely to participate in the open primary, said John Yob, CEO of Strategic National, a Grand Rapids political consulting firm. BY THE NUMBERS Republican Newt Gingrich has a slight lead over Mitt Romney among Michigan voters likely to participate in the...