I’m hearing this a lot from readers/D.C.ers/S.C.ians over the last 24 hours or so. Here, from a reader:

Looking ahead (and I know it’s too early), what a pair McCain/Romney would make on the Republican ticket for the general election. Each significantly complements the other. Romney’s deep financial knowledge and business acumen, as well as his youth, would blend extremely well with McCain’s wisdom and resolve. McCain, though, should lead the ticket. Vitally, the country still needs a wartime commander in chief, and, pragmatically, only McCain could command the respect and attract a sufficient number the votes from conservative Democrats and Independents, which will be the key to victory. Here’s hoping these two won’t brutalize each other in the nomination process.