Machado's visit and Rodriguez's speech come as another vessel was seized by US forces in the Caribbean on Thursday, according to the US military's Southern Command,
DW reports.
The pre-dawn raid on the tanker Veronica took place "without incident," the US military said in a statement, adding the vessel was "operating in defiance" the US president's "established quarantine of sanctioned vessels in the Caribbean."
Six Venezuelan-linked oil tankers have been seized by US forces since mid-December, with four of the operations taking place after Maduro was snatched from Caracas and brought to New York.
Maduro's deputy Rodriguez quickly took over as interim president, and the Trump administration has signaled Rodriguez is ready to play ball with US plans to take control of production, refining and global distribution of Venezuelan oil.