Not just some states, all machine using states and to different degrees as needed, and ever since the machines showed up at your local precinct. For years, and for many elections.

Mittens, Lindsey, Turtle.....they're not speaking to us on the news clips, they're talking to the people who are running the machines. So they can be reelected.

From 2016: https://blackboxvoting.org/fraction-magic-1/