Colombian President Gustavo Petro has strongly criticized the Trump administration’s actions against Venezuela. Colombia's left-wing president has called the U.S. capture of Venezuelan President Nicolás Maduro an “abhorrent” violation of sovereignty. That has reignited President Donald Trump’s ire against the Colombian leader; Trump has issued insults, sanctions, a visa revocation, and threats that Petro's country could be Washington’s next military target. Colombia, the world’s biggest producer of cocaine, has been the United States’ closest regional ally for decades, and Colombian officials have been scrambling to quell the recent tensions. Petro meanwhile is calling for mass protests against Trump on Wednesday.