Rep. Spencer Bachus, Chairman of the House Financial Services Committee, is reportedly being investigated by the Office of Congressional Ethics. The Washington Post reports the probe involves allegations of insider trading. Meanwhile, Ron Barber, a top advisor to former Rep. Gabrielle Giffords, says he'll run to succeed her in a special election this year. Barber was shot twice in last year's Tucson rampage, which killed six people and injured 13 others, including Giffords. David Hawkings, editor of the CQ Roll Call Daily Briefing, gives an analysis of the situations.