MCCAIN AND BUSH.

Unlike Matt, I think it's a losing strategy to try and beat McCain by linking him to Bush. McCain's rejoinder to this is actually fairly effective:

You will hear from my opponent's campaign in every speech, every interview, every press release that I'm running for President Bush's third term. You will hear every policy of the President described as the Bush-McCain policy. Why does Senator Obama believe it's so important to repeat that idea over and over again? Because he knows it's very difficult to get Americans to believe something they know is false. So he tries to drum it into your minds by constantly repeating it rather than debate honestly the very different directions he and I would take the country. But the American people didn't get to know me yesterday, as they are just getting to know Senator Obama. They know I have a long record of bipartisan problem solving. They've seen me put our country before any President -- before any party -- before any special interest -- before my own interest. They might think me an imperfect servant of our country, which I surely am. But I am her servant first, last and always.I have worked with the President to keep our nation safe. But he and I have not seen eye to eye on many issues. We've disagreed over the conduct of the war in Iraq and the treatment of detainees; over out of control government spending and budget gimmicks; over energy policy and climate change; over defense spending that favored defense contractors over the public good.I disagreed strongly with the Bush administration's mismanagement of the war in Iraq. I called for the change in strategy that is now, at last, succeeding where the previous strategy had failed miserably. I was criticized for doing so by Republicans. I was criticized by Democrats. I was criticized by the press. But I don't answer to them. I answer to you. And I would be ashamed to admit I knew what had to be done in Iraq to spare us from a defeat that would endanger us for years, but I kept quiet because it was too politically hard for me to do. No ambition is more important to me than the security of the country I have defended all my adult life.

Some of this is bullshit, some of it isn't. But because there are actual differences between McCain and Bush, McCain can fairly easily puncture that attack, particularly if it's made in a debate setting. You can just see him laughing, "there you go again, Senator..." And if he does that effectively, and Democrats are overly invested in the strategy, that could leave them tied up in a message they need to change mid-election. More effective would be to argue that McCain is pursuing the policies of the past, not just of Bush, and that his policies are wrong. Those arguments will ring truer, and be far harder for McCain to wave away.