WASHINGTON (AP) — The Supreme Court has rejected a challenge to century-old bans on campaign contributions by corporations.

The justices turned away an appeal without comment Monday from Iowa Right to Life, less than a week after they struck down overall limits in federal law on contributions from the wealthiest donors to candidates for president and Congress, as well as political parties.

Iowa Right to Life asked the court to hold that corporations have the same constitutional free speech rights as individuals to make campaign contributions.