http://movies.hollyscoop.com/transformers/scoop-on-transformers-2_596.aspx "Jon confirmed that there will be a second adition to the blockbuster hit Transformers. When we asked Jon for some scoop he said, 'This is a big one. It's gonna happen, we're getting ready to go.' Although there are no confirmations of what stars have signed on, we have a hint that Jon will be in the second edition. Jon also mentioned that the story line will 'travel around the world a little bit'." He's quite important so it's not surprising Bay wouldn't bother to recast the government figurehead.