William Hague was the Conservative MP for Richmond (Yorks) from 1989 until he stood down at the 2015 general election. He served as leader of the Conservative Party from June 1997 until September 2001. He was made a peer in the 2015 dissolution honours.
In May 2008 in the abortion amendments to the Human Fertilisation and Embryology Bill (now Act), Hague voted for the abortion time limit to be lowered to 20 weeks.
The House of Commons Science and Technology Committee report of October 2007 had found no good evidence of change since the limit was set in 1990, and hence no new reason for a reduction. However, it acknowledged that this was only one of many factors to be taken into account when legislating, and did not make any recommendations as to how MPs should vote.
In February 2015 William Hague voted in favour of allowing mitochondrial donation, which would allow women who carried mitochondrial diseases to give birth to children who would not inherit the disease. An October 2014 briefing report by the Human Fertilisation and Embryology Authority (HFEA), which had been investigating the issue for three years, stated that there was no evidence to show that mitochondrial donation was unsafe. However, some religious groups had said that such procedures should not be allowed. After clearing both Houses mitochondrial donation is now legal, regulated by the HFEA.
Article on Section 28 (January 2000): http://news.bbc.co.uk/1/hi/uk_politics/619366.stm