Most Americans support term limits and mandatory retirement ages for Supreme Court justices but remain evenly split on whether to increase the number of justices on the high court, according to a new poll.

Overall, 34% of Americans support adding seats to the nine-member court, while 34% oppose the measure and 32% are undecided, according to an AP-NORC survey released Monday.

The numbers change dramatically when political parties are taken into consideration.

Most Democrats (52%) say they favor increasing the number of justices and 14% are opposed to it. Just 14% of Republicans support adding seats, while 61% are against it.