I’m Stephen McKenna, and I approve of this message.
Changing voting day to a Saturday will not solve the problem, because some people work on Saturdays. And even if voting day was a holiday, it would be impossible to legislate the equal opportunity for all citizens to be free from work for a full day to vote, because there are critical systems like hospitals, energy, and military that cannot be put on hold for an entire day.
In response to Chris’s comment, I will say that the Democrats have a very strong desire to increase voter turnout, especially among lower class and minority populations. A voting holiday would reward their populist message.