A federal judge in Texas heard arguments Wednesday in a case that could potentially threaten the most common form of abortion in the United States. U.S. District Judge Matthew Kacsmaryk heard arguments from the Alliance Defending Freedom lawyers to revoke or suspend the approval of the abortion medication mifepristone, which has been used by millions of American women for over two decades. Judge Kacsmaryk did not issue a ruling Wednesday, but the outcome of the case could have far-reaching implications for women’s reproductive rights in the United States.