Two top advisers to Beto O’Rourke’s presidential campaign have left the former Texas representative’s team.

Becky Bond and her deputy Zack Malitz, who were involved in the Democrat’s failed 2018 Senate election against Republican incumbent Sen. Ted Cruz, are no longer employed by the campaign, O’Rourke spokesman Chris Evans told Buzzfeed News. Evans, however, did not respond to questions about why the pair left and whether their departures were voluntarily.