A $210 billion surplus in TARP funding could be used to reduced the U.S.'s towering national deficit. WSJ's Deborah Solomon says the move follows criticism of the Obama administration's approach to debt.

The Obama administration, under pressure to show it is serious about tackling the budget deficit, is seizing on an unusual target to showcase fiscal responsibility: the $700 billion financial rescue.

The administration wants to keep some of the unspent funds available for emergencies, but is considering setting aside a chunk for debt reduction, according to people familiar with the matter. It is also expected to lower the projected long-term cost of the program -- the amount it expects to lose -- to as little as $200 billion from $341 billion estimated in August.

... the potential move illustrates how the Obama administration is trying to find any way it can to bring down the deficit, which is turning into a political as well as an economic liability. ... agreeing not to spend a certain amount of TARP money will enable the White House, in its budget projections, to assume less money out the door and, therefore, less debt issued. The move would also reduce the deficit by an unknown amount since a certain level of spending and borrowing is already factored into estimated future deficits.