The president then followed up by repeating an unsubstantiated claim he's made before that some of the protesters against him were "paid," an allegation that became popular in some right-wing circles in the build up to the 2016 presidential election, before noting that the election was "over."
The Tax Day protesters called for Trump to release his tax returns — something nearly all major presidential candidates have done since the 1970s — and call on lawmakers to represent their interests over those of major corporations.
Trump and his administration have repeatedly dismissed calls for him to release his taxes, first claiming he couldn't because he was being audited, then saying the issue was more of interest to journalists and liberal politicians.
This is not the first time the president has tweeted such accusations in the wake of major demonstrations against him and his policies. On Nov. 10, Trump tweeted that protests against his victory were "unfair" and said "professional protesters, incited by the media" were turning out in the streets.
Just had a very open and successful presidential election. Now professional protesters, incited by the media, are protesting. Very unfair!