They made sure no-one had to leave the house but now they are taking on an even more important role.
By Jack Goodman, Christopher Giles, Olga Robinson and Jake Horton
BBC Reality Check
Trump supporters have been chanting conflicting messages in Michigan and Arizona. We look at why.
The BBC's Lebo Diseko reports from a count facility in Detroit where 'ugly scenes' erupted when Republican and Democrat supporters were denied access to the count room.
Michigan Governor Gretchen Whitmer calls out the president as she reacts to the alleged plot to kidnap her.
Six people have been arrested and charged with conspiring to kidnap Gretchen Whitmer.
The officer saved a three-week-old baby girl who was choking on milk, as her mother watched.