Was Jeff Davis 'Delusional'?

[JMadonna]

In Feb 1865, after the failure of the Hampton Roads conference, Jefferson Davis rallied his congress into a rededication to the war by giving a highly slanted report of the conference. Three days later he followed it up with probably his best oration at the African Church in Richmond predicting victory before the 'next summer solstice'.

VP Alexander Stephens termed the president’s performance “brilliant,” even though he considered Davis’s predictions of victory “the emanation of a demented brain".

Putting aside Stephens political opposition to Davis and granted he was not a medical doctor ... Stephens' observation of Davis, at this time, was not an isolated opinion.

Could it be possible that the reason the war continued that Spring was because Jefferson Davis was delusional??