The president in charge and diplomat John Barrett participated in a ceremony marking the 250th anniversary of U.S. independence and 191 years of bilateral diplomatic ties.
The accounts coincide with a cultural event organized by the U.S. mission. Yunia Figueredo said an officer cited that gathering as the reason she was prevented from leaving.
Miller will replace Susie Wiles effective November 9. He moves up from deputy chief of staff after years of influence over the president's immigration agenda.
The Republican congresswoman said she was ahead of Eliott Rodriguez by more than 1,000 votes, in a close race that could lead to a recount.
Angela Eady took over on an interim basis while Espinosa's suspension remains in force or until the current term ends.
