John Stauber has a post at PR Watch that is sourced from Matt Bai's book, The Argument: Billionaires, Bloggers and the Battle to Remake Democratic Politics, where former NY Governor Mario Cuomo speaks to a group of wealthy Democratic activists:
Shortly after the November 2006 election the Democracy Alliance, an exclusive group of about 100 Democratic Party millionaire activists, met in Miami, Florida. Members and their guests heard their keynote speaker and liberal legend Mario Cuomo analyze the Democratic Party in the wake of its stunning electoral victories that had given Democrats control of the US Congress. Cuomo criticized the Democratic Party for lacking vision, big ideas and a winning political argument. His recipe for future Democratic victories was simple: "You seize the biggest idea you can, the biggest idea you can understand. And this is what moves elections."
Cuomo then dared to voice an inconvenient truth: "Now it's 2006 and we're all rejoicing. Why? Because of Iraq. A GIFT. A gift to the Democrats. A lot of whom voted for the war anyway." The former New York governor challenged his partisan audience, "If Iraq is not an issue, then what issues do we have to talk about? … Where does that leave you? It leaves you in the same position you were in in 2004 – without an issue. Because you have no big idea."
Stauber goes on to illustrate why Iraq is a "gift":
The Argument is an important book but Bai muffed the title. He should have titled it “The Gift,” because as Cuomo points out it was primarily the political gift of voter anger and revulsion over a horrific, continuing war that caused them to oust Republicans.
He then goes on to lament how the current Democratic Congressional Leadership is failing to deliver on the voting public's wishes (he is, of course, correct, but that's a whole-another-post).
It's simply too easy to beat the administration over the head with their incompetence regarding Iraq, and that's even if totally ignoring the deceptions and ideology driven mechanisms that created, sold, and marketed this war. Strangely, most pundits choose to look at the war in isolation, as though it were a unique creature born of unique circumstances.