By now it is well known that the GOP has inserted in it's platform a provision that
no foreign law take precedence over American law, here in the U.S. This is aimed at any foreign law being used to litigate any case, since SCOTUS judges have cited the wisdom of European and South African laws.
Rep. Keith Ellison (D, muslim, MN) took exception and tried to defend sharia law, saying this provision was unnecessary, because sharia law has never been recognized or utilized here in the U.S.
HOGWASH!! Here are some clear cut cases where numbskull judges have bowed to sharia law..
http://www.jewishpress.com/indepth/opinions/the-gops-anti-sharia-plank/2012/09/11/ Incidently, Ellison has a hatred for Rep Michelle Bachmann(R, Christian, MN)..because she has pointed out this proclivity by certain judges.