Siegel says, the issue of gun violence is going to play a significant role in a presidential election, with so many recent mass shootings still on the minds of voters. “The Democratic candidates are f... View MoreSiegel says, the issue of gun violence is going to play a significant role in a presidential election, with so many recent mass shootings still on the minds of voters. “The Democratic candidates are fighting among themselves to show who is strongest on gun violence,” he says. “It will be less important in the general election, but it could still be an important issue for many voters.”