Moderate Republicans gave President Bush a blunt warning on his Iraq policy at a private White House meeting this week, telling the president that conditions needed to improve markedly by fall or more Republicans would desert him on the war.

The White House session demonstrated the grave unease many Republicans are feeling about the war, even as they continue to stand with the president against Democratic efforts to force a withdrawal of forces through a spending measure that has been a flash point for weeks.

Participants in the Tuesday meeting between Mr. Bush, senior administration officials and 11 members of a moderate bloc of House Republicans said the lawmakers were unusually candid with the president, telling him that public support for the war was crumbling in their swing districts.

It's time to replace some conservative Democrats in Washington, DC. I just heard from an impeccable source that there is serious concern on the Hill that conservative Democrats in the House will vote with the Republicans to strip any and all restrictions from the Iraq supplemental tomorrow, effectively giving Bush all the money he wants with no restrictions and no effort to hold either him or the Iraq government accountable for anything. I.e., they will vote to continue this war along the same disastrous course because they're too afraid to challenge George Bush and his failed leadership.

Let me reiterate: This isn't some idle rumor. The concerns are coming from Hill sources themselves.