McCaskill blocks Air Force officers nomination

Friday, June 7, 2013 | 1:16 p.m. CDT; updated 6:13 p.m. CDT, Friday, June 7, 2013

WASHINGTON — A U.S. senator remains steadfast in blocking the nomination of Air Force Lt. Gen. Susan Helms, tapped to serve as vice commander of the U.S. Space Command, over serious concerns with Helms' decision to overturn a jury conviction in a sexual assault case.