to an end in syria. also, another epidemic in america. this one has to do with your furry friend. we want to get right to politics, though. nevada republican caucuses get under way in just a few hours. there are 28 delegates up for grabs in the first contest west of the mississippi. cnn s joe johns has more on the final rush for support. susan, as the race for nevada caucuses entered the home stretch, the mitt romney campaign was hoping their candidate was well positioned to score a victory here just like he did four years ago. it was a bizarre week in politics, though, with donald trump stirring up a publicity firestorm before finally publicly endorsing romney for president. romney did not help his own case with his comments on cnn that he was not concerned about the poor because there s a safety net for them. he later said he misspoke. meanwhile, newt gingrich, the former speaker of the house tried to capitalize on the romney misstep promoting his own plan to create j