Don't forget that Enron CEO Kenneth Lay was close to Bush Sr and Dubya too, and even spent a night in the Lincoln Bedroom while Bush Sr was in office. This Enron thing will taint both parties. The "R" or "D" never matters when it comes to undue fat cat influence - people in both parties are guilty.
In which case, there is still no net loss to Bush. However, it looks as if Bush's people played it right and smart, while the Dems may try to be petty and vindictive. In which case they will get hurt more.
This is a financial and business scandal involving Enron and Arthur Andersen. No sign of politics whatsoever. Bush and his people didn't try to bail Enron out of a mess of its own creation, and there's no smoking gun there.