From Al Hunt's column today on the Democratic primary race:

It was revealing, too, when [Democratic focus group guru Peter] Hart pushed [a Democratic focus group] to envision these senators as leaders of the country or, as he put it, their 'boss.' Obama, they say, would be inspirational, motivating, charismatic and compassionate. After praising Clinton's experience and intelligence, they say she would be demanding, difficult, maybe even a little scary.

Doesn't sound like an endorsement, does it?