they are absentee only. Republicans always lead in early absentee returns
In my experience of watching the last dozen or so elections, this tends to be the case.
As this is the primaries, the major races may or may not fluctuate much from that fact.
Propositions are a different matter though. Generally, liberal props tend to gain ground as the night moves on, and conservitive ones sink a bit. (usually if a lib starts over 50 it's a good bet, and vice versa for conservative ones.)
At this point (13% of votes counted) 81 - Library bonds - is down 44.6 to 55.4. Rough guess, I give it a 50-50 chance of passing.
82 - tax the rich for preschool, is down 40.8-50.2. I give it a 1:3 chance of closing and crossing the gap.