That is the sound of old man moe. The momentum has shifted my friends and Hillary is starting to take some serious damage here in the middle rounds. Fundraising questions, several lost primaries in a row, unless she can score a big win in Ohio or Texas, she is in trouble.
Now, that being said, this is still a very tight race and you should never count a Clinton out until the votes are counted. But if I were her campaign staff, I'd be looking for post convention work now...just in case.