so president and vice president die or disable sequentially, under the 25th amendment samaras you are going to get party continuity. but if they both are taken out of action at the same time, you get massive discontinuity in tension with the vision of the point that the minute. second tension, the 25th amendment envisions a regime in which presidents are going to, when the vice president as he becomes vacant, this is because the president is dead and the vice president stepped up on the vice president has died or resigned. when you have a vacant vice presidency, the 20th amendment provides that that vacancy filled by presidential nomination. and i think in spirit and vision contemplate a pretty smooth and speedy confirmation of the new vice presidential nominee, but the current succession statute gives the congressional party if it's different than the presidential party its interest to drags its heels and delay the confirmation of a successor of vice president because if something happens in that window, they're congressional leaders, the other parties are going to be, going to gain