<h1>Sanctions on Colombian president impose targeted restrictions on him, family members and a minister amid drug allegations.</h1> U.S. Treasury imposed sanctions on the Colombian president, his spouse, a son and an interior minister over alleged involvement in global drug trafficking, pairing targeted personal designations with prior diplomatic measures such as noncooperation listing and threats to aid and trade. The action coincides with intensified regional enforcement, including maritime interdiction and military deployments, while the president disputes the allegations and vows legal defense in U.S. courts, defending an anti-drug policy centered on crop substitution, seizures and anti-money-laundering measures.