The bank chalked up its outage to "a normal system upgrade that experienced technical difficulty."

The tightening of Senate races in Republican strongholds has raised the prospects of Democrats having even more influence on regulatory appointments and the legislative agenda.

Customers are increasingly demanding that their mortgage providers provide more than loans; they want help finding a realtor and handling all the pieces of the mortgage process, said Anthony Hsieh, CEO of Loan Depot, during the opening keynote at Digital Mortgage.

Olson ran a bank founded by his father in his hometown of Fergus Falls, Minn., before a long career in Washington.

As the Cincinnati bank seeks to regroup after the fatal shootings at its headquarters, the incident underscores the need for preparedness at banks and credit unions of all sizes, workplace safety experts say.