A supervisory special agent with the U.S. Drug Enforcement Administration (DEA) office in the Dominican Republic has been arrested in connection with an investigation into the misuse of a U.S. visa program intended for confidential informants.

In a dramatic escalation of the power struggle between the White House and the federal judiciary, the Department of Justice (DOJ) fired a newly appointed U.S. attorney on Wednesday, just five hours after he was selected by a panel of federal judges.