"We don't want to take your guns."
"No one's coming for your guns."
"We respect the 2nd Amendment."
You should just "fire two blasts outside the house!"
These are all things that prominent Democrats have said to drive home the point that they totally support your right to own a firearm. They understand that the 2nd Amendment is one of America's core principles - a civil right that they have no interest in revoking - and they, just like you, cherish the right to own a gun.