A new CNN/ORC International Poll indicates President Barack Obama moved up four points after the Democratic convention and now has a six-point advantage over Republican challenger Mitt Romney. According to the poll, released on Monday, 52 percent of likely voters nationwide back the President, compared with 46 percent for Romney. Prior to the Democratic convention, Obama and Romney were tied in polls at 48 percent. Post-convention bounces are fairly typical in US election history. A memorandum from Romney campaign pollster Neil Newhouse said. "The basic structure of the race has not changed significantly". "The Democratic convention was fairly well received, particularly in comparison to the GOP (Grand Old Party -- the Republicans) meeting the previous week in Tampa," CNN Polling Director Keating Holland said. The convention energized the Democratic base, the poll found, as more Democrats (59 percent) than Republicans (57 percent) seemed to be enthusiastic about voting. This marks a turnaround from last week, when the number of Republicans who said they were extremely or very enthusiastic about voting was 6 points higher than for Democrats. The presidential election takes place on Nov. 6, and will be preceded by a series of debates between the candidates in October.