Christa McAuliffe was a New Hampshire school teacher who was on the space shuttle Challenger when it exploded shortly after liftoff 25 years ago. Friday, the high school where Christa McAuliffe taught commemorated her life.
Gay marriage and gay rights could play a part in a number of state races across the country, including a Supreme Court judicial recall initiative in Iowa.
The nominee for secretary of Health and Human Services bowed out Tuesday over tax missteps, as did another Obama pick.
Most independents say they'll vote Democratic.