Outgoing Maryland Gov. Larry Hogan, a Republican, said that he was expecting a "huge red wave."
Moore defeated Republican nominee Dan Cox.
Wes Moore made Marylanders a promise. Accepting conservative donations would break it.
Education is one of the top issues on voters’ minds ahead of the midterms, according to a September Washington Post-ABC News poll.
Moore is a veteran, author and a former CEO of the poverty-fighting Robin Hood Foundation — he has never held public office.
Candidates squared off Wednesday in their only debate ahead of November's general election.
State legislation and funding local papers can protect against election meddling.
Election officials can begin counting ballots on Oct. 1.
The general election could take until December or early January to be certified if mail-in ballots are counted after Election Day.