Vice President Mike Pence has ceded to California Sen. Kamala Harris’ demands for plexiglass to be used at Wednesday evening’s debate, according to three people familiar with the matter.

Pence’s team had objected to Harris’ wishes for a barrier to separate the two candidates from each other and from moderator Susan Page. But after a series of talks, aides to the vice president decided to back down.

Pence aides argued that the plexiglass was medically unnecessary and said it would do little to prevent coronavirus transmission, according to people familiar with the back and forth. The Pence team ultimately said that if the barriers made Harris feel safer, they would use them. The New York Times first reported the Pence campaign’s decision.