CBS News takes a look at the state of voting machines heading into Election Day. Two years ago, a presidential commission warned it was an "impending crisis"

Voting machine makers face questions from House lawmakers — but more remain

Voting System Commission recommends new voting machines

Do electronic voting machines work?

Voting Machine

Simple Civics | How Do Voting Machines Work?

How Space Weather Can Influence Elections on Earth

Understanding How to Use Voting Machines

Know before you go—here’s how to use the voting machines to cast your vote