She's not currently an elected representative, but Hillary Clinton recently said that an Australia style national gun "buyback" program is something worth considering.
"Buyback" is a ridiculous way to characterize what happened in Australia because it conjures up images of a voluntary program. In Australia, they first managed to implement firearms registration (bad idea). Then, when they moved on to the confiscation phase, people who owned guns were ordered to either turn them in to the "buyback program" or be considered felons. And thanks to the gun registry, they knew who owned what. That is "gun grabbing".