Michelle Obama's four-state campaign
Photo: Pool/AP Photo
First lady Michelle Obama speaks during a stop in Las Vegas on Tuesday, May 1, 2012. The first lady's visit to Las Vegas was part of a four-state campaign push across the West. Nevada is among several key battleground states in the West that could determine whether President Barack Obama wins a second term in the White House. The first lady also visited Colorado and Arizona on Monday and was scheduled to stop in New Mexico after leaving Nevada.