More fundamentally, McCainâ€™s problem is that his party is unfit to govern. As research from the Republican pollster David Winston has shown, any policy becomes less popular when people learn that Republicans are supporting it. If the G.O.P. sponsored the sunrise, voters would prefer gloom. Many Republicans are under the illusion that they are in trouble because theyâ€™ve betrayed their core principles. The sad truth is that if theyâ€™d been more conservative, theyâ€™d be even further behind.