Former Bush WH deputy press secretary Tony Fratto gives it his best shot:

Over the decades, large, complex financial institutions —big banks— have been unquestionably beneficial to the U.S. economy, and to the global economy. Big banks efficiently facilitate cross-border trade and investment on a global scale, resulting in benefits that have consistently accrued to consumers and improved standards of living for people in all markets.

Large U.S. financial institutions have also contributed to the development of deep, liquid capital markets here in the United States, ensuring unique access to global financing for U.S. firms. Scale and scope are needed to sustain global trade and finance, and big U.S. banks are leaders in delivering those services.

There are ways to increase the safety and soundness of big banks – to prevent the kind of explosion we saw with Lehman Brothers, but breaking up our big banks is the wrong way to go. Initiatives to raise capital levels, improve capital quality, decrease leverage and improve liquidity – across the entire global banking system – make sense.

Me: But I guarantee you that plenty of GOPers in 2010 and perhaps the 2012 nominee are going to call for breaking up the banks and paint the Ds as the party of Wall Street. The party will not be pro-Big anything