Perhaps he’s changed his mind and wants to be veep.
Or not. I'm not sure Romney would want it, IF he thinks McCain is a likely loser. Because if Romney has eyes on 2012, being the VP candidate on a losing ticket is NOT a path to future success. Just ask:
President Edwards
President Lieberman
President Kemp
President Quayle
President Bentsen
President Ferraro
President Mondale
President Dole
President Shriver
President Muskie
President Miller
President Lodge
President Kefauver
President Sparkman
President Warren
President Bricker
President McNary
President Knox
President Curtis
President Robinson
President Bryan
In fact, you have to go back to 1920 to find the ONLY losing VP candidate IN THE HISTORY OF THE REPUBLIC later to go on to become President, namely, Franklin Roosevelt.