Original sentence: A new 2016 law, formulated by the Law and Justice government, stipulates that the IPN should oppose publications that dishonor or harm the Polish nation and that history should be popularized as "an element of patriotic education".Pursuant to a new law which went into effect on 15 March 2007, the IPN was tasked with lustration; however, on 11 May 2007 this was found by Poland's constitutional court to be  unconstitutional
Edited sentence: A new 2016 law, formulated by the nationalist Law and Justice government, stipulates that the IPN should oppose publications that dishonor or harm the Polish nation and that history should be popularized as "an element of patriotic education".Per a 15 March 2007 the IPN was tasked with lustration, however on 11 May 2007 this was deemed unconstitutional by Poland's constitutional court