There are worldwide sister demonstrations of the Women's March.
The country's president said Iranians have the right to protest but not to cause damage or violence.
Rouhani said Iranians had the right to be heard, but not to cause violence or damage property.
Starting earlier this month, protesters blocked a main highway into the capital city Islamabad and called for the country's law minister to resign.
Protesters say the government decision to remove a declaration of Muhammad as God's final prophet from its oath of office was blasphemy.
A total of 20 former Catalan leaders face charges relating to the independence referendum Madrid deemed illegal.
The Berkeley City Council voted Tuesday to allow police to use pepper spray on violent protesters.
"Antifa" is commonly considered to be part of the far-left, a group Trump said was partially responsible for violence in Charlottesville, Virginia.
The site was used to organize protests on Inauguration Day that turned into riots in one area.
President Trump said he's considering using military force in Venezuela, even though it hasn't been acting threateningly towards the U.S.
Venezuela opened its controversial constituent assembly, which has the power to rewrite the constitution. Opponents called it a power grab.
The $344 million Daniel K. Inouye Solar Telescope is expected to be the largest of its kind when it's built, but protesters want to stop it.