COULD RAISE QUESTIONS: Mary Jo White, President Barack Obama's nominee to head the Securities and Exchange Commission, has represented an A-list of banks and corporations that could raise conflict-of interest questions in her Senate confirmation hearing.

A-LIST OF CLIENTS: White's clients in her years as a corporate litigator include several Fortune 100 companies — JPMorgan Chase, General Electric, Microsoft, Hess and Verizon — as well as Switzerland's largest bank and the world's biggest automaker, Toyota.

ETHICS PLEDGE: White says she will remove herself from any decision affecting a former client for one year after she represented them.