Dems, you should have gone with Biden. But no, it was all "DON'T YOU DARE RUN, HILLARY OR BUST!!", and now we are all paying the price. I hope you're ready for President Trump.
I'm sure that in September 2008, plenty of Democrats were screaming "WE SHOULD HAVE GONE WITH HILLARY! Now we're stuck with Obama. I hope you're ready for President McCain/Palin." The polls are kind of screwy right now, but I think it's a bit too early to start panicking. If the race is still this tight by next weekend, then it might be time to panic.
