Saying he wants to give his supporters "an insider advanced notice that on Wednesday I'll be officially suspending the campaign," former House Speaker Newt Gingrich uses a video this morning to take another step on his way out of the 2012 Republican presidential campaign.

Gingrich, who is expected to soon endorse Mitt Romney's bid for the White House, doesn't mention the former Massachusetts governor. But he does say, again, that reelecting President Obama "would be a genuine disaster."

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