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. >>> i want to bring in jim cavanaugh. jim, great to see you. what is your reaction to this first?it is a horrible decision. it is nonsensical. it is sad that the supreme court would rule this way. bump stock clearly turns a semi-automatic rifle into a machine gun. the trigger is pulled once and the explosive action of the cartridges keeps firing the weapon. and that's what the 1934 congress tried to define. if you see that shooter there, his trigger is held. he's not moving his trigger finger. his trigger finger is held still, the explosion sends the gun back against his shoulder, and in a traditionally manufactured submachine gun, only the slide goes back, which is the top of the gun. and so basically this was a two clever by halfway to get around the law, and the atf director interpreted appropriately said it is the submachine gun. and the supreme court just, you know, lost their common sense. i mean, we're a nation based on common law, but apparently not common sense. and, you know, it is akin to a boater hanging four tires off the side of his boat, and when the coast guard sto

joining us now, nbc's yamiche alcindor, and retired atf special agent in charge jim cavanaugh and civilts attorney and former prosecutor charles coleman. what is the latest reaction we're getting to this ruling? >> well, what we're really hearing from is both sides of the political aisles here. republicans largely saying that they're going to respect or celebrate this decision and democrats saying this is a decision that really needs to be rectified by congress. so with that in mind, let's take a listen to what we've been hearing from capitol hill and the lawmakers there. >> it's a fantastic ruling, not surprising. i would expect it to be done. that's an indication of where we'll be on the pistol brace ban as well. i think it was a foolish mistake under both administrations. >> the supreme court has been on a rampage with respect to the ability of states and localities to pass reasonable gun safety measures. >> so there you have it, republicans and that republican lawmaker saying essentially i'm in favor of this ruling and then you have someone like jamie raskin, a high profile democrat

. >> that was msnbc terrorism analyst jim cavanaugh you often see on air in the aftermath of a mass shootingbump stocks. even the machine guns are banned in the u.s. justice clarence thomas wrote that a firearm with a bump stock does not meet the definition of a machine gun under federal law. >> mark i will just cut to the quick. folks really don't care about the life and life of people when your court says you can take this piece of equipment and latches onto your gun and just pull the trigger and have 800 rounds, 800 rounds in one minute be dispensed from that weapon. no human finger can fire 800 rounds in one minute clarence thomas, but this bump stocks can. >> clarence thomas thinks differently and he decides because he rules us. he claims that bump stocks do the work of a human with a lightning fast trigger finger and i think that's outrageous. they increase the rate of fire from 180 rounds to 800 rounds as you said. they decreased accuracy and their only use is to slaughter as many humans as possible in a short time as possible. what justin thomas did was completely butcher the statuto

i want to bring in msnbc contributor and retired atf special agent in charge, jim cavanaugh. jim, these are the types of weapons law enforcement is facing frm what does this mean for atf agents? does this put them in danger? >> it puts all our law enforcement officers in danger, and it puts all our social securities in danger, ana. it's nonsensical the majority decision here. if you look at the graphic on your screen, you can see that stock, the bump stock, and you can see the space there. and the 1934 law that defined machine guns, the national firearms act. it said a machine gun is a weapon that by a single function of the trigger fires more than two rounds, and what it really meant was that, you know, in a semiautomatic gun, the shooter holds the firearm and pulls with their finger each shot. that's a semiautomatic firearm. but what a machine gun or a sub -- these are really sub machine guns, classified as sub machine guns because they can be carried by a human, you pull the trigger and hold it and the gun empties the magazine, could be 30 rounds, 100 rounds, 500 rounds. it