Their McCain pile-on would not be so egregious if only the White House -- and the perks of politics -- were at stake. With 165,000 troops serving in Iraq and 26,000 serving in Afghanistan, Republican voters must guard more than their party purity. They have to vote -- and at times hold their tongues -- with an eye on what is most important: Iraq. As public support for the war has eroded, it has been disheartening to watch Democrats, who once supported the war, drop the ball on Iraq. Now, to watch Republicans bloody McCain, when they should be concentrating...