University student Yessenia Medina was trying to concentrate on her virtual psychology class when a stunning headline popped up on her screen: Peru’s Congress had voted to oust the nation’s popular president. Furious, the 23-year-old joined the thousands of students, workers and others protesting this week, decrying Congress and refusing to recognize the new president, Manuel Merino. Peru’s Congress voted overwhelmingly to remove now ex-President Martín Vizcarra on Monday, complaining about his handling of the pandemic and accusing him of corruption.