Ms. Pelosi, 62, an unabashed liberal from San Francisco, promised an economic plan that appealed to the political center.

Once there were great herds of these unabashed liberals of the old school, expressing passionate belief in polite, civilized discourse and rational persuasion.

After all, politicians who aspire to statewide or national office rarely position themselves as unabashed liberals.

What the exhibition offers instead is the official Lange, the New Deal propagandist and unabashed liberal who was able to show human faces behind the slogans and the statistics.

The Democrats had sequestered the two unabashed liberals to spots early in the evening, outside the prime-time hour that the networks have been broadcasting during the two conventions.

On the other was Mr. Gantt, the 47-year old former Mayor of Charlotte, an unabashed liberal who integrated Clemson University in 1963.

Senator Wellstone, 58, a former political science professor, was an unabashed liberal who often landed on the short end of 99-1 votes.

The son is an unabashed liberal who favors abortion rights and frequently aligns himself with the Rev. Al Sharpton.

He is an unabashed liberal who, though less stridently left-leaning since he entered the mayor's race, has championed causes near and dear to the union's 100,000 working-class and middle-class members.

He ran as an unabashed liberal in the Democratic primary and has barely moved toward the center this fall.