Depending on how you’re scoring at home, we’ve entered either Phase II, Phase III, or Phase IV of the presidential campaign, the post-Iowa-and-New Hampshire race to Michigan, for the Republicans, and South Carolina, for the Democrats. Since Barack Obama and Hillary Clinton have come out with fairly predictable here’s-the-candidate-giving-their-best-speech ads, for this week’s ad analysis we’ll examine what the other candidates have rolled out in the past few days. Let’s start with Rudy Giuliani, who is actually only competing now in Florida.