Is it possible? The challenge is to form a timeline which leads to a Eugene Debs presidency with a twist no earlier then 1894 after the Pullman Strike.
Does it have to be the Eugene Debs we know? Can he have been a moderate or have moderated, enough to draw on one of the major parties? Or does he have to be OTL Debs?
Yes he could have moderated but I do believe he still needs to hold the same core values.