As the primary presidential elections come nearer, the rift between Democratic candidates Sen. Bernie Sanders and Hillary Clinton grows bigger.

With Hillary targeting Sanders' gun control stance during the latest Democratic debate, the Vermont senator fired back over his rival's connection with alleged shady Wall Street Institutions, particularly Goldman Sachs.

According to Sanders, "The first difference is I don't take money from big banks. I don't get personal speaking fees from Goldman Sachs."

It was arguably Sanders biggest night as he managed to perform well in the debate, laying out his case and also managing to expose Hillary's issues, The New Yorker reported.

Sanders proceeded to argue his proposal to break up the big institutions and said that it's unusual that three of the four largest banks are bigger right now, compared to when the government bailed them out during the recent recession.

He said that in order to remedy this problem, the 21st Century Glass-Steagall Legislation must be brought back.

The Glass-Steagall Act is a provision in the U.S. Banking Act that limits commercial bank securities, activities and affiliations within other commercial banks and security firms. Simply put, it separates investment banking institutions, to traditional ones, Business Insider has learned.

However, Clinton fired back and said that she has a better plan, which focuses on "shadow banking."

The two heavyweight candidates' argument over Wall Street led to Sanders bringing up the corruption of the system. He said that just recently, Goldman Sachs was fined $5 billion and argued that its head, who's a billionaire, did not get prosecuted by the government while "kids who smoke marijuana get a jail sentence."

But the biggest zinger Sanders dropped was when he said that Hillary Clinton received $600,000 in speaking fees in just over a year from the banking and investment firm.

However, Hillary countered that although Sanders is preaching about controlling these institutions, she said that it was the senator who voted to deregulate the financial market back in 2000 and to take the police off the streets.

She also argued that Sanders' vote made the SEC and the Commodity Futures Trading Commission no longer regulate swaps, which she connected to the reason behind the 2008 recession.

In a related report by ABC News, Sanders was asked the day after the debate and said that he's not personally attacking the former secretary of the state.

He argued that the subjects he brought up during the debate were facts and it is true. He said, "She has received $600,000 in one year as speaking fees from Goldman Sachs. If that's not true, I will apologize. It's true."