The 2018 midterm elections are already in warm-up mode with nearly 2,000 candidates registered for 33 U.S. Senate seats. Add to that the thousands of House seats, gubernatorial and other statewide positions, and local judiciary, School Board, and municipal seats and ballot issues, and you get an advertising bonanza that’s likely to total $8.5 million, up 2.5% from the last midterm election year in 2014.  The remarkable finding: More than half of the money is coming from Special Interest groups and PACs – all headed toward local or statewide markets.