Jeremy Kahn in the Newsweek:
...unlike Obama, who promised a new politics that would transcend not only race but traditional ideology and corrupt Washington ways, Mayawati has built her power on demagogic class warfare. As her national ambitions have grown, she recently began reaching out to upper-caste voters—but by playing on their fears of the upwardly mobile middle castes, not by appealing to their better, caste-free angels. She has accumulated a suspiciously ostentatious fortune, and is dogged by corruption charges. She is admired by many Dalits, but often more for her power and jewels than for her limited accomplishments on their behalf. Her victory, if it comes, may be seen as a great leap forward for India's oppressed—but, ironically, will end up bolstering the caste system that has kept them in chains.Mayawati would likely be a highly divisive national leader—an anti-Obama—and not only domestically.