Durbin sent a letter to Wells Fargo Chief Executive John Stumpf last month complaining about the bank's new charges.

WSJ: BofA Retreats on Debit Fee, Citing Uproar

Probably not the best idea John Stumpf has had lately.

FORBES: Wells Fargo Should Think Twice Before Expanding

John Stumpf, chairman and CEO of Wells Fargo, was more upbeat.

WSJ: Debbie Downers on Wall Street

Wells Fargo will report earnings before the opening bell and CEO John Stumpf will host an earnings call at 10am EST fresh off the heels of a massive mortgagee fraud suit filed against the bank.

FORBES: JPMorgan, Wells Fargo Lead Off Bank Earnings Tomorrow In Defense Mode