Ike’s father received a WatchTower funeral when he died in the 1940s. Ike’s mother continued as an active Jehovah’s Witness until her death. Ike and his brothers also stopped associating regularly after 1915. Ike enjoyed a close relationship with his mother throughout their lifetimes, and he even used a WatchTower printed Bible for his second Presidential Inauguration.
The association stopped due to the Russellites failed prediction of Armageddon not due to a break in their theological understanding. The foundation of the JW theological differences with Christianity is their faulty interpretation of scripture in creating a very different Bible than that used by the more orthodox. Eisenhower clearly had some attachment to that religion by using the Jehovah’s Witness Bible in his 2nd inauguration and after his pubic “conversion” to Presbyterianism.
I’m only saying his connection to the JWs was never an issue in his political campaigns.