The Supreme Court hears this Wednesday an abortion case in Mississippi that challenges this right across the country

The Supreme Court examines this Wednesday the oral arguments on an abortion case in Mississippi that represent the best opportunity that the leaders of the right have had in decades to reverse the historic decision of 1973 in the case Roe v.

Wade, who codified a woman's constitutional right to terminate her pregnancy before a fetus can survive outside the womb.

Justices will weigh a Mississippi law that bans abortion after 15 weeks' gestation, with limited exceptions, which is long before the current set point of "feasibility": around 24 weeks.

This 2018 law was blocked by lower federal courts.

The state also asked the court to vacate the 1992 ruling in Planned Parenthood v.

Casey, who reaffirmed Roe v.

Wade.

The Mississippi case raises fundamental questions for abortion rights.

Part of Wednesday's debate is likely to revolve around whether the court should abandon the long-held rule that states cannot ban abortion before 24 weeks.

More than 90% of abortions are performed well before this limit, in the first 13 weeks of pregnancy, according to the Centers for Disease Control and Prevention (CDC).

Even if the justices don't explicitly override this precedent, they could open the door to a host of new restrictions that would please the right wing.

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Encouraged by a court now dominated by a 6-3 conservative majority, some of the top Republicans were already expressing their confidence Tuesday.

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"We are asking the court in no uncertain terms to make history

," former Vice President Mike Pence, who has been laying the groundwork to seek the presidency in 2024, said during a speech in Washington.

"We are asking the United States Supreme Court to overturn the Roe v. Wade case and restore the sanctity of life at the center of American law."

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The highest court will also consider challenges to a Texas law that prohibits abortion after just six weeks of gestation, before many women even know they are pregnant.

Amelia Bonow, left, with her cousin Lila Bonow, Emily Nokes and Sara Edwards, all with the group 'Scream Your Abortion', hold a sign outside the Supreme Court, Tuesday, Nov. 30, 2021. Jacquelyn Martin / AP

"This is the first time they have a clear majority of pro-life judges,"

Carol Sanger, a reproductive rights expert at Columbia Law School, told The Associated Press news agency.

"So they have the votes if they decide to use them," he added.

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The court's decision, expected by the end of June, could dramatically change next year's midterm elections, providing a new motivating force for Democrats, who largely support abortion rights and who have had Difficulty closing ranks on the issue this year.

If the Roe v.

Wade is overturned, which "will undoubtedly boost efforts by conservatives in many states to make laws that they believe would not have been kept under Roe," William Martin, professor of religion and public policy, said in an email. at Rice University who has studied the growth of the anti-abortion movement.

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Still, for conservative activists, the case is the culmination of decades of work electing Republican state legislatures, enacting new barriers to abortion access, and supporting pro-life justices, including the new conservative majority on the federal Supreme Court.

"Tomorrow the Supreme Court will hear the most important case for the pro-life movement in two generations,"

said Marjorie Dannenfelser, president of the Susan B. Anthony List, an anti-abortion group that sponsored Pence's speech and plans to spend $ 10 million on television and digital advertisements in Washington and the contested states to further the case.