No, his premise is that the murder rate in "chimpy Bush's quagmire worst blunder in US history" is similar to that of some of our big cities have had in the past.
Once again, you can say apples and oranges, but he used the AP-Iraq Gov't death numbers
Past U.S. murder rates are not readily available. The one data point I checked, New York City, was off by 50%.
If you truly believe Iraq is safer than high-crime U.S. cities, past or present, I can only wish you a wonderful life. You'd have to go back to the Civil War to find higher intensity combat in the U.S. than is occurring currently in Iraq.
In 2005, the most recent year available, there were 16,400 murders in the U.S. for a population of 296.4MM. According to Strategy Page, Iraq experienced 16,400 Iraqi deaths from political violence in a population of 27.6MM. Of course this excludes the 835 American service members killed in action or died from wounds. Further, it excludes murders in Iraq. Additionaly, it excludes hostile forces killed in action. Finally, it excludes coalition troops and contractors who were killed.
Then there is the obvious fact that 150,000 U.S. troops are committed to combat in Iraq. In contrast, even the highest-crime U.S. cities are patrolled by police officers in unarmored sedans. In New Orleans, cited as a high-crime city, no police officer was killed in the line of duty in 2005, 2006 or 2007 to date.