Basically, he has always been a liar. But now the dementia makes it TONS worse and while the impulse to spin yarns is still there, he is no longer cognitively able to lie persuasively.
So yes, he is now and has always been a liar. It’s just that now he is unable to lie even reasonably well. So what we have is a mixture of dementia and chronic dishonesty.
Oh, and Lefties, YOU voted for this! Sometimes that fact makes me shake my head and say, Really? But this is YOUR fault.
Biden told the midshipmen that he applied to the Naval Academy in 1965. He told a tale of applying to the Academy with a letter from then-Delaware Senator J. Caleb Boggs. However, in 1965, Biden graduated from the University of Delaware. He wouldn’t have been applying for graduate courses at the Naval Academy because there were none. The tale was an odd one, mixing his dream of playing football with his interest in the Naval Academy. [emphasis added]