WASHINGTON — The Supreme Court on Monday agreed to hear two cases on the limits of the First Amendment’s protection of free speech. One asks whether California may require “crisis pregnancy centers” to provide information about abortion. The other is a challenge to a Minnesota law that forbids wearing political buttons, badges and other insignia at polling places.

The California case, National Institute of Family and Life Advocates v. Becerra, No. 16-1140, concerns a state law that requires centers operated by opponents of abortion to provide women with information about the availability of the procedure. The centers seek to persuade women to choose parenting or adoption.

The state law requires the centers to post notices that free or low-cost abortion, contraception and prenatal care are available to low-income women through public programs, and to provide the phone number for more information.

The centers say the law violates their right to free speech by forcing them to convey messages at odds with their beliefs. The law’s defenders say the notices combat incomplete or misleading information provided by the clinics.