What can lawn signs really tell us about where an election is headed?

Lawn signs -- the cardboard rectangles that populate people's front yards during an election season -- may not be a scientific gauge of political support, but they are impossible to ignore. Brook Silva Braga takes a look at how these lawn signs, which usually give a candidate's supporters and critics a sense of optimism or concern, are playing differently in the 2020 cycle.

Видео What can lawn signs really tell us about where an election is headed? канала CBS This Morning