Exhibit 23.3 The Board of Directors of Western Interstate Bancorp: We consent to the use of our report included herein and to the reference to our firm under the headings "Summary-Conditions to the Merger; Termination of the Merger Agreement", "Summary -- Certain Federal Income Tax Consequences", "The Merger -- The Merger Agreement -- Conditions to the Merger", "The Merger -- Certain Federal Income Tax Consequences", "Selected Financial Data of WIB", "Legal and Tax Matters" and "Experts" in the prospectus. /s/ KPMG PEAT MARWICK LLP ------------------------- KPMG Peat Marwick LLP Orange County, California April 17, 1997