Nowadays it's pretty hard to know if R politicos are one or the other. But I sorta doubt that all of them are so clueless that they think they're telling the truth when they make obviously fallacious statements. The one common denominator, though, is that they must think voters are stupid. Given their (the politicians') connections to and reliance on Fox "news," it's a pretty good assumption. Because Fox is nothing if not a disseminator of Republican disinformation. (Bruce Bartlett, conservative and former economic advisor to Saint Ronnie, recently said that what comes from Fox "news" should be viewed as a press release from the RNC. It's their right, he said; but it shouldn't be considered credible news.)
Anyhow, on the subject of liar vs stupid, there's Jeb Bush, in reference to his brother:
It's hard to believe he doesn't "understand" the facts. What he understands is that his potential voters don't give a shit about what's true. If they did they wouldn't be watching Fox, and they wouldn't be electing demonstrable liars.
So I suppose "the smart one" deserves credit for understanding the depths to which American politics, and especially today's Republican party, have sunk, and playing it like that guitar in "Mad Max." To our everlasting (which might not be that long) shame, the Foxified will eat it up like soylent green. After all, they still love it when über-mendacious Donald Trump says shit like this.