The questioning sometimes got contentious as the Supreme Court heard its first abortion rights case under Chief Justice John Roberts.
At times, the justices talked over each other and over the lawyers presenting their arguments.
New Hampshire's attorney general defended a law requiring teens to tell their parents before they have an abortion. A judge can waive the requirement, but some justices said they're troubled that the law doesn't make an exception for minors who have a medical emergency.
Justice Antonin Scalia disagreed, saying, "It takes 30 seconds to place a phone call" to a judge.
Four of the justices wondered if doctors could be prosecuted or sued if a severely sick minor did not want to notify a parent, and a judge was unavailable.
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