Social distancing, plexiglass have been utilized in Senate debates over the past few weeks
Amid the controversy surrounding a plexiglass barrier at the vice presidential debate Wednesday, a number of Senate debates across the country have utilized the measures.
In last Friday's South Carolina debate, Democratic challenger Jaime Harrison brought his own plexiglass divider to his debate against Sen. Lindsey Graham.
Both candidates said they tested negative the day before the debate and those attending had to fill out a questionnaire saying they had no symptoms.
The Arizona Senate debate on Tuesday night also saw the candidates using plexiglass dividers.
In Colorado, Sen. Cory Gardner and Democratic challenger John Hickenlooper were separated with plexiglass dividers. Both candidates tested negative prior to the debate.
In North Carolina's debate last Thursday, plexiglass wasn't used, but Sen. Thom Tillis and challenger Cal Cunningham were socially distanced from each other and the moderator.
In Iowa, Theresa Greenfield and Sen. Joni Ernst shared a table with the moderators. All were separated by plexiglass barriers.
-ABC News' Meg Cunningham and Kendall Karson