Don't blame this on the press.
Actually, the coverage for Clinton was very positive initially, even leading up to Super Tuesday. The coverage became more intense (interpreted as negative by some) when she was being so overwhelmingly defeated in state after state. She was floundering and basically saying just about anything trying to turn the tide (which garnered criticism - such as the sniper story and she was the candidate for working class white people).
When she finally got back onto her message and not smearing Obama, people in a number of states responded. However, it took her WAY too long to get back on HER message and by then it was too late.
So, I think the criticism of the Clinton failure is the story of a campaign that thought they had it in the bag and did not plan for a hard fought grass roots campaign.
Hilary was a good candidate and possibly the best candidate, but with a campaign staff and organization that let her down.
She is a good Senator and I hope Obama will find a place for her in his administration. I personally think she should become the Senate Majority Leader instead of Harry Reid.