Gingrich to quit U.S. Republican presidential race

WASHINGTON (Reuters) - Newt Gingrich is expected to withdraw next week from the U.S. Republican presidential contest, people familiar with the campaign said on Wednesday, a day after Mitt Romney added to his commanding lead with primary wins in five states. Related Stories Kurdish rebels kill 4 Guards in western Iran - report U.S. says LRA's Kony "significantly degraded" Bo's brother resigns