It would give Dems more ammunition and momentum, but would make it numerically harder.
OK, so assuming that the slate of candidates on the ballot this year is the same as it actually is, can you think of any particular candidates who might be in a stronger or weaker position than they actually are right now if Moore were in office?
Democrats across the ballot in general, people like Rosen, Nelson, and non competitive races like Wisconsin, Pennsylvania, Minnesota, Virginia, and Ohio would just go further to Dems, and down ballot too.