India, Jan. 4 -- The US military operation that led to the capture of Venezuelan President Nicolas Maduro has triggered legal questions, including whether Congress was consulted before the use of force. President Donald Trump said US forces carried out a large-scale operation early Saturday, resulting in the detention of Maduro and his wife, Cilia Flores, who face criminal charges in the United States. The move followed months of escalating pressure on Caracas, including US strikes on vessels Washington says were involved in drug trafficking.

As details of the operation emerged, attention turned to US lawmakers from both parties seeking clarity on the administration's legal authority and congressional oversight.

Congress did not approve...