There was a time when leading Republicans told something like the truth. While there have been moments approaching clarity from individuals, in general the Republican party machine’s message has not followed this path since somewhere around Goldwater in ’64 or Nixon in ’68.
And why should they change, when it works so well for them? Their base believes each absurdity in turn, the media never calls them on their lying but rather gives their lies the credence of being half the national story.
Trying to understand their psychology, their explanations, and what they give honor and status to, the only conclusion I can reasonably reach is that they will never stop lying until they are forced to stop by a power greater than themselves.