The top U.S. diplomat in Colombia, John T. McNamara, returned to the country on Wednesday after a week of consultations in Washington, saying he arrived "with persistent concerns" over rhetoric and actions by senior members of President Gustavo Petro’s government that "put at risk" the historically close bilateral relationship. McNamara is in Medellín for the Feria Aeronáutica Internacional y Espacial and reiterated Washington’s expectation of “concrete steps” from Bogotá on trade, migration, drug trafficking and security. His re-entry coincided with the return to Washington of Colombia’s ambassador, Daniel García-Peña, who publicly clarified that neither Secretary of State Marco Rubio nor any U.S. official is involved in a plot to overthrow Petro’s administration. García-Peña delivered an apology letter from Petro to President Donald Trump and said both governments will refocus on common agendas after last week’s reciprocal recall of envoys. The diplomatic flare-up was triggered by Petro’s 11 June claim that Rubio was linked to a right-wing effort to topple him—an allegation that prompted the United States to summon McNamara and hardened U.S. warnings about Bogotá’s recent policy moves. The episode unfolds as Colombia faces pressure to present a strategy for negotiating the 10 % tariff the United States imposed in April and to reassure investors unsettled by the dispute.