The language abilities of an ambassador, and his/her choice of language, can be a reflection of his/her qualifications and/or the face he/she chooses to present to the country to which they are appointed.
Pete Hoekstra was born in the Netherlands, to Dutch parents, and raised in the historically Dutch town of Holland, MI. Furthermore, he has historically taken an interest in the Netherlands and US-Netherlands relations. This suggests he might be able to speak Dutch.
However, in recent weeks, his prominent and widely shared interactions with the Dutch press have been entirely in English, and his Twitter feed contains a statement entirely in English on recent events.
Does the Ambassador speak Dutch? If so, to what extent?