I'm well aware that I'm preaching to the choir, but this bears repeating- the day is not done. In addition to your US Reps and Senators, there are also local factors to consider.
Illinois has already faced down the first salvo, but New Yorkers never got a chance. The newly signed law there is now the strictest in the nation, and others are coming on hard.
Its not all bad news, though. There is time, though precious little, to get involved.
Write your local reps. Write your Sheriffs. Write to everyone, whether they are pro or anti gun. The Pro's need to know we stand with them; the Anti's need to know we oppose.