HBO’s Game Change has just filled out its Republican ticket. The network just announced that Ed Harris will play John McCain in the TV movie about the 2008 presidential race (adapted from the behind-the-scenes book written by Mark Halperin and New York’s own John Heilemann); he’ll join Julianne Moore, who was set as Sarah Palin a few weeks back. It’s just a damn shame that we can’t age Amy Poehler up to play Cindy … or can we?