 She was also re-elected in the 2015 elections, after which she was appointed Minister for Senior Citizens in the new government (changed in Minister for Social Equality in August 2015).On 17 May 2020, Gamliel took up a different cabinet post when she was sworn in as Minister of Environmental Protection

Whilst at Ben-Gurion University, Gamliel dated Sagiv Assulin, with whom she worked closely together in the students' association, with the couple becoming known as "Sagilon".Assulin was also on the Likud list for the 2009 elections, but in 35th place, and he failed to win a seat.