+Citizens Fed Up posted this meme, and asked, "How can these Republican Candidates be so out of touch with reality??"
The answer is, they are not out of touch with reality. They are in touch with this reality: their only remaining constituency (not counting billionaires and lobbyists for multinational corporations) is angry old white men who watch Fox News, plus the women those AOWMs control.
When speaking to that audience, "single mother" is a dog-whistle for "slut." It doesn't matter to them what the reality of a situation is, only what grooved track you can get the "mind" of an AOWM onto when deciding how to vote in the fall.
Implying that the women who raised our two most recent Democratic presidents fit the "slut" category is just a bonus.