Was John McCain the best candidates that 2008 Republicans could have nominated? Was 2008 truly winnable for Republicans or was it a lost cause for them and an assured win for Democrats?
No.
The incumbent United States president, George W. Bush, had a job-approval percentage rating that was as welcoming as a sexual disease which infected a huge percentage of the nation.
If LibertarianRepublican, who started this thread, needs clarification, I would suggest he/she do some research which informs him/her as to what was happening seven years ago. It's such a long time ago that it might as well be seven decades ago.
Speaking of a long time ago…This answer also applies to any forum member wanting to start a thread which asks, "Could the Republicans have won in 1932?"