Vöpel first became a member of the Bundestag in the 2013 German federal election.[2] He has since been serving as a member of the Defense Committee.[3]
In addition to his committee assignments, Vöpel has been part of the German delegation to the Parliamentary Assembly of the Organization for Security and Co-operation in Europe (OSCE) since 2018. From 2014 to 2017, he also served as deputy chair of the German-Slovak Parliamentary Friendship Group.