The problem is clearly endemic. Republicans cannot tell the truth because their theories are not based upon actual facts.
As I keep pointing out on this board, show me the evidence. Not a one of them has provided any when requested. Instead, they disappear. Or go nuts because they don't like their dogmas exposed for what they are.
Turns out this paucity of veracity is true of the folks at the top of the party as well. Rather than face facts, they invent them.
Trust but verify, Reagan used to say. I think the trust bit should go on hold. Where Republicans are concerned - Verify.