 Notwithstanding a lack of awareness, 52% of Americans approved of limiting terms to 18 years, while 35% disapproved.When asked how old is too old for a Supreme Court judge to serve if he seems healthy, 48% said "no limit as long as he is healthy", while 31% agreed that anyone over the age of 70 is too old.Some state lawmakers have officially expressed to Congress a desire for a federal constitutional amendment to limit terms of Supreme Court justices as well as of judges of federal courts below the Supreme Court level.