Here's some things I found on a blog about this subject. Not my words but interesting.
McCain offers a health care plan that is similar to Bushâ€™s proposal, which failed to expand coverage and cut health care costs. McCain endorsed Bushâ€™s plan to privatize Social Securityâ€”so much so he joined Bush on the campaign to sell the proposal. Although McCain previously opposed Bushâ€™s tax cuts for the wealthy he has made a â€œbreathtaking turnaroundâ€ and supports these budget-busting, tax cuts for the wealthy.
McCain Cast 377 Votes in Support of President Bushâ€™s Position, Supported Bush a Majority of the Time