The Mississippi measure is specifically designed to challenge those rulings, trying to get courts to rule states can restrict abortion before viability. It's just completely unfounded and a court has never upheld anything under the 20-week viability marker Katherine Klein “The 15-week marker has no bearing in science. It's just completely unfounded and a court has never upheld anything under the 20-week viability marker” https://www.independent.ie/world-news/abortion-clinic-sues-as-mississippi-imposes-uss-toughest-restrictions-36723060.html “The 15-week marker has no bearing in science. That means the restrictions kick in about two weeks before those of states whose 20-week bans begin at conception. The US Senate failed to pass a 20-week abortion ban bill in January.

Source: Irish Independent March 19, 2018 22:18 UTC