^Ambassador Duddy was declared persona non grata and expelled by the Venezuelan government in September 2008. He was returned to his post by mutual agreement of the U.S. and Venezuelan governments in 2009. Duddy completed his tour in July 2010. "Background Note: Venezuela". United States Department of State. Diakses tanggal 2011-07-04.
^On June 28, 2010, President Obama had nominated Ambassador Palmer for the post and the government of Venezuela had agreed, but December 20, 2010 the Venezuelan government revoked agreement for Ambassador-designate Palmer, which had been issued in May. "Background Note: Venezuela". United States Department of State. Diakses tanggal 2011-07-04.
^"Todd Robinson". United States Department of State. Diakses tanggal 2019-03-28.
