Once again, LiberalOasis hands Kerry the right script, gratis.
The only thing I'd add is that Kerry needs to provide at least a few specifics, if not a serious plan, for what he believes should be passed. (This doesn't mean he needs to lay out a spending plan, just propose some accountability and general guidelines.) Because we can't be for continuing or upgrading military presence in Iraq without acknowledging the cost.
[Well, we could promise improved services while cutting both taxes and spending, but then we'd be republicans.]