The party formed by President Andrés Manuel López Obrador wrested political control in Mexico's most populous state and Delfina Gómez became its first female governor.
It is thought to be the first such assault since the Taliban swept to power and began their crackdown on the rights and freedoms of Afghan women and girls.
Supporters of the march have warned that an autumn election might be the nation’s last chance to stop the erosion of democracy under the ruling Law and Justice party.
Three Revolutionary Guard vessels with armed troops aboard approached the merchant ship at a close distance Sunday afternoon, the U.S. Navy said in a statement.
Champions of the imprisoned opposition politician held pickets and painted graffiti, risking their own prison terms amid an enhanced police presence in Moscow for the day.
U.S. Defense Secretary Lloyd Austin, speaking at the Shangri-La Dialogue, said Washington would not “flinch in the face of bullying or coercion” from China.
The likely cause of the rail disaster emerged as families from across India rushed to the site for news of missing loved ones while workers rushed to restore service.