There is NO WAY that these people are turning out to vote for Hillary.
I actually think that enthusiasm for Trump (not Maryland per se, but in general) is so high that a lot of people might be very anxious to ‘early-vote’. I think this enthusiasm is much greater than any ‘anti-Trump’ enthusiasm.
(There might be a very big turnout today especially, because so many people in the Eastern part of the state don’t work on Fridays, and it’s a good day to get it done.)