@bi4smooth I like the Swanson's dinner vs. BBQ image--thanks for sharing it.
The issue of lying vs. truth-telling gets muddled in political circles: The classical definition of "knowing something" is that one "knows" a proposition for which one has (1) justified, (2) true (3) belief. ("Belief" here means intellectual assent; it has nothing to do with religion.) All three ingredients need to be present for one to know something in the strict classical sense. I could say, "It is sunny in Paris," which might be true, and I might believe it, but I haven't looked it up and thus I have no justification for believing it...thus I don't "know" that it's sunny in Paris. Conversely, your BBQ-smeller has justification for believing that "dinner smells wonderful," but it happens to be false, and thus strictly speaking he doesn't "know" the proposition that he has made...but as you note, he's not a liar.
The question arises whether someone (such as a politician) is lying if they make statements about which they have no justification. They might not know that they are false, but they have no justification to believe that they're true. Such a thing might not count as a lie, but it's still not responsible to make the assertion. Most sources assert that Mr Trump lied 30,000+ times whilst in office, but there's likely a chunk of those in which he wasn't willfully being deceptive--he just didn't know what he was talking about and said something that was politically expedient. I'm not apologising for him, just focusing the terminology. I think government officials--especially a head of state--have a responsibility to have justification for what they say. Speculating that coronavirus would simply "go away" or that it could be cured by injecting bleach is irresponsible because such statements had no justification--and also happened to be be demonstrably false.
People sometimes refer to Mr Trump's continued assertion that he actually won the 2020 election as "the Big Lie." I think that's only a lie if he knows that it's false, and it's hard to assess what's actually going on inside his dysfunctional toddler's brain. It's possible that he believes it, but since it's (a) not true and (b) he has no justification for it, he cannot be said to "know" that he won the election. But he is certainly well-versed in the Goebbel's Principle (named for Hitler's propaganda minister) that says, I think accurately, that if you tell people something enough times, be it true or false, many will believe it.
A quick search shows that "Joy Reid" is a talk/news host on the cable network MSNBC. I don't watch her programme as I don't have cable TV, and I don't know if that channel is even offered where I live. (I get television the old-fashioned way--with an antenna--and it's free!)
Perhaps I'll prepare some BBQ this evening...