June 25 (Bloomberg) -- Democrat Barack Obama has opened a 15-point lead in the presidential race, and most of the political trends -- voter enthusiasm, views of President George W. Bush, the Republicans, the economy and the direction of the country -- point to even greater trouble for rival John McCain

Illinois Senator Obama, winning support from once skeptical women and Democrats, beats McCain 48 percent to 33 percent in a four-way race, a Bloomberg/Los Angeles Times poll shows. Independent candidates Bob Barr and Ralph Nader get 7 percent combined, with the remainder undecided.