Protesters clash with supporters of Trump's military parade in Washington, D.C., as they disagree over the president's authoritarian intentions.

An emerging internet theory claims that soldiers intentionally marched out of step during President Donald Trump's military parade in silent protest.

As a military parade rolls through Washington, DC, on Saturday – President Donald Trump’s birthday – millions of Americans are expected to protest in what organizers predict will be the strongest display of opposition to Trump’s administration since he took office in January.

While many demonstrations against the Immigration and Customs Enforcement agency have been peaceful, with marchers chanting slogans and carrying signs, others have led to clashes with police who have sometimes used chemical irritants to disperse crowds. Hundreds have been arrested.