LOL, you have to win the popular vote in order to win local elections.
Deep Blue areas (inner cities) vote 90% D. Most Republican areas are really purple with just a hint of the red. They voter 52% R.
The result is that Republicans win more seats. The Democrats might win the popular vote.
But wait, another factor enters. Voter turnout and total votes cast in areas that vote 90% D is far lower than total votes cast in purple areas tinged red.
The result? Who knows?