Leftists have an annoying habit of confusing their assertions with actual fact, without any need to show actual data.
The leftist definition of science is: any assertion made by a leftist, independent of observable fact.
You know, like Harry Reid saying: "The border is secure."
“Leftists have an annoying habit of confusing their assertions with actual fact....”
.
Say it with gusto: “They lie”.
How else can they get their agenda across?