William Cummings

USA TODAY

Wells Fargo CEO John Stumpf told the Senate Banking Committee he was "deeply sorry" Tuesday over allegations the bank opened millions of accounts without customers' permission in order to meet aggressive sales quotas.

Sen. Elizabeth Warren was having none of it.

The Massachusetts senator has built a reputation for being tough on shady Wall Street dealings and the executives she believes are responsible. But she took it to the next level with Stumpf.

"OK, so you haven't resigned. You haven't returned a single nickel of your personal earnings. You haven't fired a single senior executive," Warren said. "Instead, evidently, your definition of accountable is to push the blame to your low-level employees who don't have the money for a fancy P.R. firm to defend themselves. It's gutless leadership."

Stumpf — who earned $19.3 million last year — said he was "deeply sorry that we failed to fulfill our responsibility to our customers, to our team members, and to the American public," but he rejected calls to return any executive compensation. He said he wanted to be "very clear that there was no orchestrated effort, or scheme as some have called it, by the company."

Wells Fargo CEO refuses to push for exec pay clawback

Warren had a different view. “You squeezed your employees to the breaking point so they would cheat customers,” she said. “You should resign. You should give back the money you took while the scam was going on.” She also said Stumpf should be "criminally investigated."

Carrie Tolstedt, who ran the unit that created the unauthorized accounts, retired in July with an estimated $125 million in stock options.

"Did you consider firing her?" Warren asked Stumpf of Tolstedt.

"No," Stumpf replied.

"Seriously?!" Warren responded, incredulously.

Wells Fargo has fired about 5,300 employees over the fake accounts. Those accounts led to $2.6 million in fees to affected customers that have since been refunded. The company has agreed to pay $185 million as part of a civil settlement.

Twitter users saw Warren put Stumpf on blast. And the vast majority liked what they saw:

Several people who said they weren't necessarily Warren supporters were still fans of her performance:

Of course, not everyone was impressed:

Delamaide: Wells Fargo scandal reopens ‘too big to fail’ wound

Contributing: Nathan Bomey USA TODAY; The Associated Press