In the
2007 Welsh Assembly election, Sandbach contested the
Labour-held constituency of
Delyn. She lost, but achieved a
swing of 3.7% from Labour to Conservative and Labour narrowly held the seat by just 511 votes. Sandbach contested the Delyn parliamentary constituency in the
2010 general election, but lost again, though achieving a larger
swing of 6.7% from Labour to Conservative. Following the death of
Brynle Williams in 2011, she became a Conservative Regional Assembly Member for
North Wales. She held the
safe Conservative seat with a majority of nearly 13,000, and promptly resigned from the
Welsh Assembly, to be succeeded by
Janet Haworth. On entering the House she was elected to the Welsh Affairs Select Committee and the Energy and Climate Change Select Committee, which she sat on until it was disbanded in October 2016. In March 2017, she was elected on to the Business, Energy and Industrial Strategy Select Committee and was subsequently re-elected to the committee after the 2017 General Election. Sandbach was appointed to the joint committee examining the failure of
Carillion and was highly critical of the lack of oversight by the auditors and directors of the company. She was also an elected executive member of the
1922 Committee of backbench Conservative MPs from 2015 to 2019. One of her main policy interests was improving services for those who suffer the loss of a baby. Following a debate in the House of Commons in November 2015, she helped set up the All-Party Parliamentary Group on Baby Loss, of which she was appointed co-chair. The group worked with all the major child loss charities to develop the national bereavement care pathway which has since been adopted by 108 NHS trusts in England. Ms Sandbach secured a £1.5 million grant for a new counselling centre at
Alder Hey Children's Hospital in Liverpool, the hospital which provided support for her after the loss of her son Sandbach has been a strong advocate for improving representation of women in the workforce, women's rights and female representation in Parliament. In some of her first appearances in the House she raised the issue of encouraging more girls to study Science, Technology, Engineering and Maths subjects in order for them to access those highly paid, highly skilled jobs and reduce the gap between men and women in the workplace. Sandbach supported the United Kingdom remaining within the European Union (EU) in the
2016 EU membership referendum. In the referendum, the UK voted to leave the EU (
Brexit). She retained the Eddisbury seat at the
2017 general election, with a majority of 11,942. Sandbach was one of 11 Conservative MPs to rebel against then Prime Minister
Theresa May's government in voting for an amendment to the
European Union (Withdrawal) Act 2018 on 13 December 2017, which guaranteed MPs a vote on the final Brexit deal agreed with the European Union. She voted for May's
withdrawal agreement on all three opportunities. Sandbach endorsed
Rory Stewart during the
2019 Conservative leadership election. She was one of 21 Conservative MPs who had their
whip withdrawn on 3 September after rebelling against the government by voting for opposition MPs to control the parliamentary process to try to prevent a
no-deal Brexit, after which she sat as an Independent. On 12 September, she declared her support for a
referendum on the Brexit withdrawal agreement. Ms Sandbach was one of a number of female MPs, including
Nicky Morgan MP and
Anna Soubry MP who went public about the increasing threats received by female MPs featuring in the ITV documentary "Exposed" filmed in 2019 On 15 October 2019. the members of the Eddisbury Conservative Association passed a motion of no confidence in her. She commented that the local Conservatives were "an unrepresentative handful of people" and they should not get to decide the question. On 31 October 2019, it was announced that Sandbach would stand in her constituency as a Liberal Democrat candidate. On 12 December, standing as a Liberal Democrat, she lost her seat to the Conservative candidate,
Edward Timpson. Timpson received 30,095 votes to Sandbach's 9,582. ==Personal life==