Eisenhower put a union man, Martin Durkin, in charge of Labor too, didn’t he?
https://en.wikipedia.org/wiki/Martin_Patrick_Durkin
Durkin was the Democrat in the Eisenhower cabinet. Ike was always pandering to liberals. Nixon wouldn’t ask him to campaign in 1960 because he thought Ike was too ill to do so. Not so at all; Ike was such a stand-offish person despite his national persona. Never once did Ike invitd the Nixons to a White House social for just the four of them.