This is a very good question. In many respects, the administrations would be more alike than either would want to admit.
The first noticeable difference is in the vice presidency; McCain selects John Engler to be his running mate. Michigan was close in our timeline. Here, the state is carried by the GOP ticket making Florida irrelevant.
In terms of Policy, McCain's administration will have real similarities to that of George W. Bush. There will be campaign finance reform, efforts to reform Medicare and Education, and increased domestic oil and gas exploration. McCain will push harder for balanced budgets, won't be as staunch of a social conservative rhetorically, and likely hands interrogations better.
The first noticeable difference is in the vice presidency; McCain selects John Engler to be his running mate. Michigan was close in our timeline. Here, the state is carried by the GOP ticket making Florida irrelevant.
In terms of Policy, McCain's administration will have real similarities to that of George W. Bush. There will be campaign finance reform, efforts to reform Medicare and Education, and increased domestic oil and gas exploration. McCain will push harder for balanced budgets, won't be as staunch of a social conservative rhetorically, and likely hands interrogations better.