Sanders responded: "Pffttt.come on.I am- I paid the taxes that I owe".
Sanders reported earning over $850,000 as an author in 2017 and almost $800,000 as an author in 2016.
"Martha, why don't you- you make more money than I do!" They are all hoping to draw attention to President Trump's refusal to reveal his tax data.
Earlier this month, the Sanders campaign announced it raised $18.2 million over the first six weeks.
"It was a bestseller, it sold all over the world, and we made money".
In a recent op-ed, he outlined his now-familiar promise to take on the "powerful special interests" stemming from "the greed of Wall Street, the power of very big multinational corporations and the influence of the global billionaire class".
He called a tax system that has let large corporations such as Amazon and Netflix pay little or no taxes "a disgrace".
He has previously released his 2014 tax return and published it on his website, which included a full list of itemized deductions.
Democratic presidential candidate Sen.
Sens. Kirsten Gillibrand, D-N.Y., Elizabeth Warren, D-Mass., and Amy Klobuchar, D-Minn., have all released their returns. Sen.
The earliest return released yesterday, for 2009, was done by hand, which may indicate that the Sanders did the taxes themselves.
"I didn't suggest a wealth tax", MacCallum said back. You can read the full tax returns in the story below.
Tuesday night Trump made a decision to weigh in, as he's wont to do, on his political opponents, in this case the two top Democratic presidential candidates in the 2020 election, complete with his affectionate pet names for each.
In a statement released by his campaign, Sanders noted that while the returns show his family is fortunate, he also grew up with a "stress of income insecurity" that informs his political views.
Sanders, 77, a socialist senator from Vermont, released records showing that his family had raked in a whopping $566,000 in 2018, piling pressure on President Trump to follow suit and releasing his tax information. Sanders said to the moderators at the event in Bethlehem, Pennsylvania.
Vermont Senator and 2020 Democratic frontrunner Bernie Sanders' new proposals will likely cost upwards of $20,000 per American taxpayer, according to a nonpartisan group focused on the USA budget and deficit.
"If anyone thinks I should apologize for writing a bestselling book, I'm sorry, I'm not gonna do it", he added.
There is no requirement that presidential candidates release their tax returns, but many have done so by tradition. Trump said in a tweet.