The case fell to U.S. District Judge William Conley. It was unclear whether he would take any action before Monday.
Barbara Lyons, executive director of Wisconsin Right to Life, praised Walker for following through on promises to sign the bill. She said the law is on solid legal ground, noting eight other states have similar admitting privileges requirements for abortion privileges.
‘‘It’s no surprise they'll be challenging,’’ she said of Planned Parenthood. ‘‘They see their livelihood threatened, their income threatened. We don’t think in the long run they'll be successful.’’