According to those familiar with the talks, however, the two camps disagreed on whether a Plexiglas barrier should be erected. Harris’ campaign supported it, Pence opposes it.
“If Senator Harris wants to use a fortress around him, you have it,” said Katie Miller, a pence spokeswoman.
A Harris spokesman did not immediately respond to a request for comment.
It’s not the first time plexiglass has been used in a debate in the past few days: Harrison put a plexiglass barrier between himself and the incumbent during a weekend debate between Republican Senator Lindsay Graham and Democratic challenger Jaime Harrison.
Some Democrats have feared Trump may have been contagious during his debate with former Vice President Joe Biden last week, despite the fact that the Democratic candidate has since tested negative.