WATCH: Maddow Tries to Explain to MAGA Why Trump's Not a Successful Businessman

Donald Trump loves to brag about being a successful businessman, but his fraudulent criminal behavior led to his being banned from running a business in New York, as well as his upcoming sentencing on 34 felony counts related to fraud he committed under the umbrella of the Trump Organization.

Despite Trump's obvious decline, he's still polling strongly with his base, mostly because they believe they'll somehow financially benefit from him being back in office. 

On her weekly show Monday night, MSNBC's Rachel Maddow bluntly challenged voters who say they're backing Trump because it’s a “business decision,” asking exactly what they base that thinking on.

“This issue about making a business decision about your vote, a business decision about the election, this comes up all the time when you look at real-world support for Trump, when you look at why relatively normal people say they’re going to vote for him,” noted Maddow.

Maddow explained how President Joe Biden’s administration had left Trump’s economy “in the dust,” as she said, before making predictions that inflation and the deficit would both soar under a potential Trump second term and how dozens of former Trump officials are now backing Democratic rival Kamala Harris over him.

Maddow was then joined by an actually successful businessman, Mark Cuban, who easily put Trump in his place during their lively conversation.

Cuban couldn't help but laugh when Maddow asked about Trump's many side hustles to fill his dwindling campaign coffers.

Watch Maddow's full interview with Mark Cuban, below.