Tuesday's primary saw former state Rep. Randy Graf, a conservative and strong foe of illegal immigration, win despite strong opposition by the retiring GOP incumbent, Jim Kolbe, as well as national party leaders.

NPR: A Super Tuesday for Lincoln Chafee

As Endeavour bid farewell to Kennedy Space Center, it elicited strong emotions from people -- such as CNN iReporter Randy Lathrop of Cocoa, Florida -- who have lived with the shuttle program nearby for decades.

CNN: Space shuttle Endeavour's final touchdown