Former First Lady Barbara Bush will hit the campaign trail next week in New Hampshire for her son, Republican presidential candidate Jeb Bush, after the Iowa caucuses. "Jeb hopes to have his mom, First Lady Barbara Bush, out on the trail soon. No date is currently set," a campaign aide told CBS News on Friday. The candidate revealed the news on Thursday during a retail stop at Palmer's Deli and Market in Des Moines. Shaking hands and posing for pictures with the lunchtime crowd, Bush eventually worked his way to an older woman sitting by herself. Immediately after greeting her,...