In the 2016 TV movie All the Way, the character President Lyndon B. Johnson prominently explains (in a voice-over to the audience):
Clausewitz said “Politics is war by other means.” … Bullshit. Politics is War. Period. … You know how you win a campaign, by not losing it. I only lost one election my whole life. The son of a bitch stole it from me in the final seconds with a handful of fake votes, and I will carry the pain of that with me to my dying day. But I’ll tell you what, nobody will ever do me that way again. It’ll be some other way.
However, the Clausewitz quote is not correct. It is actually the other way round:
Der Krieg ist eine bloße Fortsetzung der Politik mit anderen Mitteln
Carl von Clausewitz: Vom Kriege, First Part, First Book, First Chapter, Section 24
War is merely the continuation of politics by other means
This is probably the most famous quote of Clausewitz. It seems unlikely that Lyndon B. Johnson (who was an officer during the Second World War) did not know the correct quote and its meaning.
Is the voice-over text including the misquotation based on any real words from Lyndon B. Johnson, or is it a deliberate mistake made by the filmmakers?