pleaseclap, 
"I can't understand why these liberals aren't liberaling"
I mean the confusing part is why do democrats let right-wing talk radio define them. Democrats are not liberals, they're democrats
The reason they're not doing the stuff liberals are supposed to do is because they're not liberals and never have been: democrats are conservatives.
Similarly the so-called conservative party isn't conservative at all - they're anti-democratic radicals