Barack Obama is undoubtedly an appealing figure–and not just among Democrats. Even Republicans are attracted to his eloquence, his message of unity–and the fact that he is running against the Clintons.

But Washington Post writer Peter Wehner says Obama will never gain widespread support among Republicans because “he is, on almost every issue, a conventional liberal”:

Bill Clinton ran an intellectually creative race whose ideas appealed to non-Democrats. Barack Obama has shown no such inclination so far (his speeches, while inspiring, mostly avoid a serious discussion of policies). If he wanted to demonstrate his independence from liberal orthodoxy, for example, he could come out in favor of school choice for low-income families, which would both help poor families and demonstrate support for some of the best faith-based institutions in America: urban parochial schools.

If Obama becomes the Democratic nominee and fails to take steps such as this, his liberal views will be his greatest vulnerability. Obama will try to reject the liberal label–but based on his stands on the issues, at least so far, the label will fit, and it will stick.

Barack Obama is among the most impressive political talents of our lifetime. If he defeats Hillary Clinton, the question for the general election is not whether he can transcend his race but whether he can reach beyond his ideology.

Is Obama capable of doing so?