Florida Congresswoman Debbie Wasserman Schultz sheds some light on the timing of Giffords' resignation:
Rep. Debbie Wasserman Schultz of Florida, the Democratic National Committee chair, told CNN that Giffords — a close friend — came to the conclusion that going back to her job this year would reduce the time and work she could put into her recovery.
Giffords' return to Tucson for the one-year anniversary of the shooting showed her "how challenging it would be. It came into focus then," Wasserman Schultz said.
"Gabby doesn't do anything halfway," she said, using the shortened version of Giffords' first name familiar to all. She said the most important thing for Giffords was to continue her recovery, which is "more likely to be years, not months."