"I don't see the wisdom behind 'reaching out' to moderates and conservatives at the expense of our liberal base. The attitude today from many is that liberals should just shut up so that our party won't offend some unknown moderate voter. What happens if our base sits this one out because LIBERALS are offended?"
Well, yeah, esp. since they already know from the past two prez election cycles that their mushy strategery DOESN'T WORK

"But, none of our voters should be taken for granted. Too much 'reaching out', and our party may lose its grip on its liberal base."
Maybe it's the corporate overlords Democratic leaders are afraid of offending.
"Folks are looking for clear opposition to the Bush regime and their supporters in Congress. Liberals offer that without qualification. Their viewpoint should be the first thing our party defends."
Liberals offer that and the whole nation is ready for it.