President John McCain (R-AZ) / Vice President Tim Pawlenty (R-MN)
Senator Hillary Clinton (D-NY) / Fmr. Governor Tim Kaine (D-VA) ✓
McCain goes to war with Iran in 2009 to disarm an alleged nuclear weapons program and in support of the Green Movement protests, and a combination of the oil shock and congressional Republicans' doubling down on Reaganomics plunges the country indisputably into a second Great Depression. By the 2010 midterms, factionalism between the neocons and a powerful small-government conservative movement that emerged during the Kerry administration is tearing the GOP apart. In a President McCain vs. Obama 2012 scenario, I had Trump running third party, but here I think he would endorse Clinton.
Dragging the exact kind of Republicans who started the Middle East wars and caused the Great Recession into the future only kicks the 2008 can down the road. Actually, the inevitable landslide defeat snowballs the longer you keep them in power.