A modern GOP

David Frum is looking for a one-sentence answer, and comes to this conclusion:
[I]f the Democrats can accommodate both investment bankers and unionists, the GOP should be able to find room for differing views on issues pertaining to sexuality. We always say we’re a “big tent.” But when was the last time we allowed a pro-choice Republican a slot on a national ticket? 1976, that’s when. One reason we got stuck with Sarah Palin for VP in 2008 was that when McCain (wisely) decided he wanted a woman running mate, he bumped into this constraint: all the other Republican female senators and governors were pro-choice, and therefore were excluded from consideration from the start.

Yet it is a fact that many Republicans and (yes!) many conservatives are pro-choice. Many more favor stem-cell research. Many again were appalled by the Terri Schiavo episode. Younger Republicans and conservatives, like younger Americans generally, are moving to acceptance of same-sex marriage.
Certainly my kind of conservatism -- or my kind of GOP, anyway.

Personally, I would propose something along the lines of what Frum lays out. Perhaps, "A return to a classically liberal belief in individual choice in social contexts, free-market-oriented policy to preserve a maximum of economic choice, and an assertion of American interests overseas." How would you answer?