US President-elect Joe Biden has nominated Chief Justice of the District of Columbia Court of Appeals Merrick Garland as attorney general, Biden's office said in a statement, cited by NBC News. " Lisa Monaco has been nominated for the post of Deputy Prosecutor General, " Garland is best known for being nominated for the Supreme Court by President Barack Obama, but Republicans refused to even consider him in the final year of Obama's presidency in 2016.. The US Attorney General heads the Department of Justice and simultaneously coordinates a number of intelligence agencies, including the FBI.