The Obama and McCain campaigns began the week with new attack ads, respectively portraying each other as "a risk we just can't afford to take," and "not ready to lead." The Obama ad "Article" quotes from a recently published article by McCain citing bank deregulation as a model for the health care industry. McCain's ad "The Chicago Machine" attempts to portray Obama as corrupt by linking him to the Chicago political machine.

Obama ad on health care, "Article:"

McCain ad on corruption, "The Chicago Machine:"

UPDATE: Michael Schaffer reviews the ads for The New Republic.