Its endorsement has been particularly crucial to some Republican judicial candidates.
The two judicial candidates were listed in the middle of the card.
More is at risk than the fate of the judicial candidates.
"Giving money to judicial candidates might be stretching it a little," he said.
"These are the kind of judicial candidates the American people want," he said.
Many political leaders say a judicial candidate without a Democratic endorsement rarely comes close to winning.
Most judicial candidates decline to discuss many of their personal views.
The justices said states should sharply increase their efforts to provide voters with information about judicial candidates.
The party machine usually manages to elect most of its judicial candidates.
County Democratic leaders did endorse judicial candidates this year, but not in unison.