Now he says the election has happened and he doesn't need to release his tax returns.
But so far, the White House is betting that not enough people care about the issue to hurt Trump politically.
Documents from Trump's 2005 federal tax returns, obtained by investigative reporter David Cay Johnston, showed the president paid $38 million in taxes on income of more than $150 million.
Tax day protests were held from coast to coast as demonstrators asked for President Trump to release his tax returns.
Protesters took to the streets in dozens of cities nationwide Saturday to call on President Donald Trump to release his tax returns, saying Americans deserve to know about his business ties and potential conflicts of interest.
United: Airline won't use police to remove passengers
Megan McCarthy, a spokeswoman for the airline, declined to say if the payment would be in cash, frequent-flier miles or other forms.
Messing told MSNBC: "We know for a fact our current administration has deep links to Russian Federation".
As Trump was returning from a trip to a golf course on Saturday, his motorcade took a 10-minute detour to avoid protesters lined along a road leading up to Mar-A-Lago in Palm Beach, Florida.
Tax Day marches are scheduled in three North Carolina cities to protest President Donald Trump refusing to release his tax returns.
During the campaign trail, President Trump promised to release his tax returns but after 86 days in office, he has yet to do so.
'Mother of all bombs' has Afghans divided
But former President Hamid Karzai accused the United States of using Afghanistan as "a testing ground for new and risky weapons". The massive bomb terrified villagers 20 miles away across the border in Pakistan with a blast they described as earsplitting.
Many featured oversized inflatable chickens with the President's features, suggesting Mr Trump is too afraid to make details of his tax affairs public.
The former chief of Britain's MI6 intelligence agency said: "What lingers for Trump may be what deals - on what terms - he did after the financial crisis of 2008 to borrow Russian money when others in the west apparently would not lend to him". "Ron Wyden called on Trump to 'knock off the secrecy".
The marches were timed to coincide with the traditional mid-April deadline for United States federal tax returns, though the filing date was pushed back two days this year.
More than four months after winning the presidency, Trump continued to attack Clinton at a rally in Nashville, Tennessee, this March.
For decades, U.S. presidents and presidential candidates have released their returns voluntarily, although there is no legal obligation to do so.
Iran's President Rouhani seeks second term despite hardline resistance
However, despite months of talks, hardliners have been unable to unite behind a single candidate. Iranian hard-liners had widely hope Raisi would challenge incumbent President Hassan Rouhani.