But there is an awful type of activism happening out there, and it affects us all. Even though this activity is underreported, it affects everyone's 401(k) retirement savings.

Trump-hating liberal activists know how to cause trouble. With record low unemployment numbers and a thriving economy, we have seen well organized activists interrupting town halls, blocking traffic in major cities, and using violence.

Shareholder activists are taking direct aim at companies — such as oil companies and gun-manufacturers — by abusing rules that publicly traded companies must follow to promote a far-left agenda. Instead of trying to pass gun control laws through Congress, they are forcing public companies to bend to their will. What they are doing is dangerous.

The most recent example happened to the legendary gun-maker Smith & Wesson. As The Free Beacon reported, an obscure women's group called the Adrian Dominican Sisters has organized its 600 members to become marginal shareholders in gun companies to pass far-left political resolutions. In this case, Smith & Wesson's parent company was forced to do a study about so-called "smart guns." After an expensive process, the report showed that "smart guns" are not viable, and consumers overwhelmingly do not blame gun-manufacturers for crimes committed by criminals with their products. Both results are common sense.

Ultimately, Smith & Wesson emphasized that its reputation for supporting the Second Amendment was much more important than attempting to appease its critics.

Other asset-managers and hedge fund leaders are willing to cave to activists — in the form of "virtue-signaling" — because they fear retribution and take actions not in the shareholders' best interest. For example, Dick's Sporting Goods' CEO, Edward Stack, frequently speaks about how his company is losing money to stop selling guns while claiming that it was the right thing to do. It is doubtful that elderly shareholders counting on those stock dividends for retirement would agree.

This sort of activity goes against the shareholders' interests and directly harm investment portfolios which own those shares. These agitators are cautious about branding their organizations in ways which encourage the anti-gun mainstream media to generate sympathetic reports to their cause, which further damages the companies' reputations. That is why the anti–Smith & Wesson activists were "nuns." And it's the same reason why "Handgun Control, Inc." changed its name to the softer-sounding "Brady Campaign to Prevent Gun Violence." These campaigns are well organized.

These shareholder activists are taking it a step farther, by sponsoring legislation (H.R. 2364) that would turn the Security and Exchange Commission (SEC) into a political policing operation by forcing financial institutions to disclose significant investments with gun and ammunition manufacturers. The goal is to embarrass those investors while harming the manufacturers' bottom line.

The reckless game played by shareholder activists makes it dangerous for shareholders who invest money that they will need to carry them through retirement.

Thankfully, Americans for Tax Reform has taken a positive step in this cause by starting the Shareholder Advocacy Forum, which will provide a voice to the legitimate shareholders while holding executives accountable when they embrace activist proposals. There should always be repercussions for company leaders which bend to the will of left-wing activists.

Enough is enough! It's time to expose shareholder activists and stop them before they harm your retirement savings.

Ken Blackwell is the former Ohio treasurer and a member of the NRA's Board of Directors.