A return to Glass-Steagall? Preposterous, right? Not a chance. Wall Street would never allow it.
And yet this happened yesterday.

In a private meeting with lawmakers, White House economic adviser Gary Cohn said he supports a policy that could radically reshape Wall Street’s biggest firms by separating their consumer-lending businesses from their investment banks, said people with direct knowledge of the matter.
Cohn, the ex-Goldman Sachs Group Inc. executive who is now advising President Donald Trump, said he generally favors banking going back to how it was when firms like Goldman focused on trading and underwriting securities, and companies such as Citigroup Inc. primarily issued loans, according to the people, who heard his comments.

What Cohn is describing in a nutshell is Glass-Steagall.
But it's just one guy. An important guy, but just one guy, right?
Actually, no.

Dismantling the nation’s banking giants isn’t a partisan issue, which is one reason why Wall Street fears the idea could gain traction. Both political parties -- and many voters -- still resent that taxpayers had to rescue the industry with a $700 billion bailout during the 2008 financial crisis.

"We support reinstating the Glass-Steagall Act of 1933 which prohibits commercial banks from engaging in high-risk investment."
- 2016 Republican Party platform

Trump continues to support a return to Glass-Steagall, although he hasn't done anything about it yet.
More crucial is that Glass-Steagall has an ally in the Federal Reserve.

A top US regulator has endorsed Donald Trump’s tentative plans to reinstate barriers between investment banking and consumer banking, arguing the divisions are vital to ensure that shareholders, and not the taxpayer, foot the bill for “inevitable” collapses...
Mr Trump’s Treasury secretary, Steven Mnuchin, said during his confirmation hearing that he, too, backed a “21st century version” of Glass-Steagall, alluding to the Depression-era law that separated commercial from investment banking.
In a speech on Monday, Thomas Hoenig, vice-chairman of the Federal Deposit Insurance Corporation, threw his weight behind the idea of separation, saying that universal banks should set up standalone holding companies if they wanted to carry out “non-traditional bank activities”.

With both Cohn and Mnuchin supporting a return to Glass-Steagall, there is no real opposition to it in the White House.
As for Hoenig, he not only supports a return to Glass-Steagall, he also made public a regulatory roadmap of how to do it.

Of course the real opposition to Glass-Steagall is in Congress. But even in Congress there is hope.

On February 1, 2017, Representatives Marcy Kaptur (D-OH), Walter Jones (R-NC), Tulsi Gabbard (D-HI), and Tim Ryan (D-OH) introduced the "Return to Prudent Banking Act," H.R. 790, calling for the reinstatement of FDR's original Glass-Steagall Act, separating commercial banking activities from investment banking. The bill was introduced with 26 co-sponsors.

There's Gabbard again, the person that Hillary supporters hate so much. She's working alongside Republicans, trying to reinstate Glass-Steagall, something Hillary herself said shouldn't be done.
Wouldn't it be ironic if Democrats officially become the Party of Wall Street?