for Obama's nomination acceptance, televised debates with McCain, and 2004 convention keynote, as well as for Bill and Hillary Clinton,

has more recently had Timothy Geithner as a client.

barring any unforeseen problems:

Obama has tapped Michael S. Barr, an adviser to former Treasury secretary Robert E. Rubin during the Clinton administration, as assistant secretary for financial institutions. A senior fellow at the Center for American Progress and the Brookings Institution, Barr has researched and written about a range of financial regulation issues.

from Obama Settles on 3 More Senior Officials for Treasury by Philip Rucker, March 28.

Here's his University of Michigan faculty page, and his Brookings Institution home page.

Here's a pdf of his November 14, 2008 testimony to the House Committee on Oversight and Government Reform Subcommittee on Domestic Policy on "the ongoing crisis in our housing and financial markets and Treasury's progress in preventing foreclosures under the Economic Emergency Stabilization Act of 2008." (10 pages.)