mcconnell once again suggested he has no power over this issue, only the president does. >> i want to know what the president supports. it's not unimportant to my members. >> what do you understand are tre ma the remaining sticking points? >> what i would like to know is what he thinks would make the progress and he would sign. and until we get that kind of guidance, we're in a holding pattern, so to speak. >> joining us now is the democratic senator who helped organize tonight's speeches on the senate floor and has been one of the senators who stalled talks with the white house over gun control, chris murphy of connecticut. senator murphy, what do you hope to accomplish tonight? >> listen, we're using every lever that we have to try to shame our republican colleagues into doing something on an issue that is frankly not controversial anywhere but inside the united states congress, right? background checks is supported by 90% of americans, 80% of gun