April 25, 2012
In this March 28, 2012, file photo Republican presidential candidate, former House Speaker Newt Gingrich, waits to speak at Georgetown University in Washington. Gingrich, who once led his rivals for the nomination in polls, is today millions in debt and describing Mitt Romney as "far and away the most likely" GOP nominee. (AP Photo/Haraz N. Ghanbari, File)
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Two advisers to Republican presidential candidate Newt Gingrich say he will formally end is campaign next Tuesday and will likely to endorse Mitt Romney.