They'll say he's not ready, either. Still, he's sure to generate lots of excitement because of his intelligence and charisma and the diversity he'd bring to a national ticket. And he also has a crossover appeal that transcends his own ethnic group.
I speak, of course, of New Mexico Gov. Bill Richardson. Who did you think I had in mind?
For the only Hispanic to hold one of the nation's governorships - and in a border state to boot - 2008 will be either the best time to run for president, or the worst.
Put me in a third camp: It's about time. As in: It's about time a credible and qualified Hispanic made a serious bid for the presidential nomination of a major political party. With the highest ratio of Medal of Honor recipients relative to their percentage of the population, Hispanics have given much to this country. It's time they added a presidential candidate to the list.
Richardson would have to be considered a serious contender, no matter what his ethnicity. He's got the goods. Having served as a member of Congress, a Cabinet secretary and U.N. ambassador, Richardson also has the benefit of being a governor - in a Democratic field likely to be chock-full of senators, in a country where voters haven't elected a senator to the presidency since 1960. He won re-election this year with 69 percent of the vote.
And now to the question at hand: Is 2008 the best or the worst of times for Richardson to run for president?
The answer depends on what happens next year, in Washington and around the country, with regard to one issue: immigration. A Democratic-controlled Congress might approve comprehensive reform that includes a path to legal residency for illegal immigrants.
Richardson has been pushing for just such an outcome, including lobbying members of Congress during a recent trip to Washington.
''I'm urging Democrats to take on immigration reform and to put it in the top tier of priorities, say in the top five, or else it'll never happen,'' he told me.
Richardson said his fear is that if Congress continues to duck this issue, local enforcement measures will take over and then ''it's going to get ugly.''
One thing that Richardson thinks is already pretty ugly is anything resembling a wall along the border. He said so recently when he called on Congress to scuttle plans to construct 700 miles of new fencing.
''They passed this bill for this stupid fence, this horrendous symbol,'' he said. ''It's not fully funded. It's so unpopular and not just with Hispanics. The border states hate it, business leaders hate it. It was this terrible vote in the last session, and it was just to convince voters they were serious, but it backfired on the extremists if you look at the election returns.''
If immigration takes center stage, it could convince people that what they really need in 2008 is a president who is well-versed on the issue and all it entails.
That's Richardson. His mother was born in Mexico, and his father was an American businessman. Richardson was raised in Mexico City before going off to prep school in Massachusetts and then earning college and graduate degrees at Tufts University. Being of two worlds - bilingual, bicultural and binational - he is well-suited to introduce one to the other.
On the other hand, if the anti-illegal-immigrant backlash continues in many communities around the country - and continues to morph, as it has been, into an anti-Hispanic backlash - Richardson could spend half the campaign trying to convince those with closed minds and hair-trigger prejudices that his loyalty lies with the United States and not with Mexico.
This should ring a bell. In 1960, a Roman Catholic named John F. Kennedy spent a lot of time trying to convince Protestant voters that, if elected president, he wouldn't take orders from the Vatican. Nearly a half-century later, we can shake our heads at how ridiculous it was to even ask the question - one grounded in ignorance and bigotry.
Next year, if similar narrow-minded questions are asked surrounding the candidacy of Bill Richardson, let's hope that voters shake their heads again and conclude the same thing.