Republicans are bracing for a tough 2012 U.S. Senate primary pitting such political heavyweights as a former U.S. senator, a sitting Florida Senate president and the congressman son of a Republican icon. . . . Senate President Mike Haridopolos, former U.S. Sen. George LeMieux and U.S. Rep. Connie Mack -- the potential field vying to pick off Sen. Bill Nelson, Florida's only statewide Democratic leader.http://www.miamiherald.com/2011/01/31/2043199/obscure-ex-lawmaker-adam-hasner.html
When numerous first tier candidates all vie for the opportunity to challenge an incumbent, it's not a good sign for the incumbent.