POTUS should block the release of the memo temporarily.

Best optics.

Think about it- if it comes out now, it's tainted and Dems will point to omissions and inaccurate/incomplete facts. If POTUS blocks the release, he gives the appearance that he cares more about truth than putting out a half-cocked memo.

It would disarm the Dems and then he can release the memo with all corroborating facts in the coming weeks.

If the memo is released now and is ill-received, POTUS will lose all credibility with ever de-fanging the corrupt actors in the gov't.