Gun Control Reform Activism

ggjohn: Republicans didn't have the Senate in 2013, they had the House, but the Senate was controlled by the Dems

Telling people things they're well aware of doesn't enhance your persona here.
I think you purposely read too much into what I said; I put it well enough, that the 'republican senate', being the republicans in the senate, voted down the bg check bill. The only way I know of to vote down something (defeat) in senate, when you have a minority, is to filibuster with at least 41 senators.
Actually that works even if republicans had indeed controlled the senate with 51, then all they needed to vote it down was at least the filibuster 41, had sufficient repubs actually supported it (cough).

how I put it: Sick that the republican senate voted down bg checks in 2013...

They voted it down, by having a filibuster proof minority of at least 41 senators. There wasn't any other way to defeat bg check bill, other than to 'vote it down', as I put it.