She also negotiated with the Liberals to join the government in 2018. The Liberals officially joined the Solberg Cabinet on 17 January 2018. After the Christian Democrats alliance conflict that lasted from September to November 2018, they eventually negotiated to join the Solberg Cabinet on the grounds of a minor change in the abortion law, something that caused harsh backlash from the public and critics alike. The Christian Democrats officially joined the Cabinet on 22 January 2019.
In 2018 she assembled a global High Level Panel on sustainable ocean economy and introduced the topic at the G7 Summit. Her Government supports the World Bank's PROBLUE initiative to prevent marine damage.
Solberg has secured significant financial support for the Global Partnership for Education and hosted the Global Finance Facility for women's and children's health pledging Conference in Oslo in November 2018. Her firm belief is that investment in education will accelerate progress on all other SDG goals.
She was awarded the inaugural Global Citizen World Leader Award in 2018 for her international engagement.