By this time tomorrow, we’ll know who will be running with John McCain.

Late money is on Minnesota Gov. Tim Pawlenty, who canceled the Friday morning appearances he was making in Denver on behalf of the Republican Party. If Pawlenty had any answers, he wasn’t sharing.

Other perceived top No. 2 candidates for McCain include Connecticut Sen. Joe Lieberman and former Massachusetts Gov. Mitt Romney.

For some reason, the names of Eric Cantor and Rob Portman keep showing up ... and in the mind of this political observer, the selection of either of those men—or either of the oft-mentioned ladies from the business world (Carly Fiorina and Meg Whitman)—would leave a lot to be desired on that ticket.

This much we know: It won’t be Mike Huckabee.

Sen. Kay Bailey Hutchison’s name has come up a bit this week, but most observers seem to think she’s a long shot—or a no-shot—considering her rocky relationship with McCain and her own ambition, which is to run for governor of the Lone Star State in 2010.

Stay tuned!