"I think all of us are happy that he heard us, just for one simple reason, it's the point of protests", Shockley said.
But so far, the White House is betting that not enough people care about the issue to hurt Trump politically.
Trump was the first major-party nominee in four decades to not release his tax returns, saying it was because he was under audit.
Pressed Monday about whether Trump will follow recent presidential precedent and release his tax returns, press secretary Sean Spicer claimed the president can not do so because he is under audit by the IRS, the same explanation Trump has used since early previous year.
Tens of thousands of people marched through Manhattan and several other U.S. cities on Saturday to demand that President Donald Trump release his tax returns and to dispute his claim that the public doesn't care about the issue.
To organizers, Trump's reaction indicated that the protests successfully conveyed their message. We're likely to find out, because it appears unlikely Trump will ever voluntarily release his returns.More news: Georgia Driver Demetrius Hollins Had Earlier 'Encounter' With Fired Cop
Protesters are taking to the streets across the country to demand that President Donald Trump release his tax returns.
And on February 3, in the midst of major protests against Trump's first executive order on immigration, the president tweeted that "Professional anarchists, thugs and paid protesters are proving the point of millions of people who voted to MAKE AMERICA GREAT AGAIN!" Mr. Trump said in January. Experts believe those records would uncover any of Trump's financial conflicts of interest, including possible business ties to Russian Federation.
"He is still under audit, the statement still stands", Spicer said in the White House press briefing on Monday, describing the audit as "a routine one that continues".
Thousands of people took part in the rallies that Trump called "small", including a march to his Mar-a-Lago resort in South Florida, where the president usually stays for the weekend.
The protests were timed to coincide with the traditional April 15 deadline for U.S. tax filings (though this year the deadline falls on April 18).