Just off the top of my head I would say McCain might have failed conservatives but I dont think he would have fundamentally transformed America.
* Russia would not control 20% of our uranium.
* Iraq would not be a disaster.
* We would not have Obamacare.
* I dont think the IRS would be investigating Tea Party members.
* John Christopher Stevens would be alive.
* Heads would be rolling at the VA.
* Eric Holder would not have a platform to instigate thugs in Ferguson and Baltimore.
* Our national debt would not be as large.
* Israel would still trust the US.
* The coal industry would be in much better shape.
* We would not have a record number of Americans on food stamps.
* We would not have record number of Americans out of the work force.
http://www.judicialwatch.org/blog/2015/04/mccain-counters-reports-of-jws-recent-irs-doc-release/
...JW never claimed the government documents establish that McCain or his staff called on the IRS to target or attack conservatives, but the records do show that former IRS official Lois Lerner was pressured by both Democrat Senator Carl Levin and McCain, an Arizona Republican, for IRS action against political advocacy groups.
In fact, the records reveal that Lerner met with select top staffers from the Senate Governmental Affairs Committee in a “marathon” meeting to discuss concerns raised by both Levin and McCain that the IRS was not reining in political advocacy groups in response to the Supreme Court’s Citizens United decision...