But why should he step down and take responsiblity for what he did? He's only following the lead of his Party and his President. None of them have taken responsility for anything that has occured in the last 7 yrs, and they are perfectly happy to let the next administration come in and clean up the mess. Hell, that's George Bush's MO.
Failing out of Yale or Harvard? Get Daddy's legacy and friends to prop you up as a C-student until graduation.
Too much of a coward to serve your Country? Use Daddy's pull to jump line and join TANG, can't handle all that flying? Go AWOL and work on a family friend's campaign.
Start an oil company in Texas, Harken Energy to be exact, and when the business fails in just a few years secretly sell your shares without telling anyone including the SEC.
And now, after starting a war that is looking to be the biggest blunder in US history, it's time for someone else to come in and clean up Junior's mess while he goes back to "clearing brush."
So, no, given the example of his leadership, there is really nothing for Senator Craig to take responsibility for.