Just as his campaigning in Virginia, New Jersey, and Massachusetts did not help Democratic candidates win their elections, President Obama's visit to Nevada did nothing for Senator Harry Reid's campaign for reelection.
From the Las Vegas Review-Journal:
Reid got no bounce from Obama's visit on Feb. 19, when the president spoke highly of him at Green Valley High School and to business leaders at City Center, polling indicates.
A larger percentage of voters surveyed (17 percent) said they would be less likely to vote for Reid following the president's visit than said they would be more likely to vote for him (7 percent). Seventy-five percent said Obama's visit would have no effect on how they vote.