Seattle's gun tax needs to be higher, according to City Council candidates Jon Grant and Teresa Mosqueda.

Grant announced today that if elected he would propose doubling the tax to $50 per firearm.

In the first year of the gun tax, 2016, it raised much less than the city predicted it would. That meant less revenue in the pool to fund gun violence research. It’s one reason Grant wants the tax raised.

Grant: "The city has already spent $275,000 to fund this research, of tax payer dollars. So I think the gun industry has a responsibility to share in the cost of that research given their direct role in the perpetuation of gun violence."

Mosqueda says she's happy to look at doubling the tax, in large part because the federal government, for years, has declined to fund research on gun violence. She says she would work with city and state officials to get at the root cause of gun violence.