Base on what we think we know, if I’m Franken, I wait until after the Moore election.
Yesterday I looked up the standing rules of the US Senate. There are about t rules pertaining to ethics - prohibition of unauthorized office accounts, gifts, foreign travel, conflict of interest, etc. The Senate code of conduct has nothing about personal behavior, especially behavior that took place 40 years ago. The Senate Ethics Committee wouldn’t seem to have any right go after Moore - but I’m sure they will anyway.