>> i do too. >> reporter: at a campaign style event in maryland. >> hello, everybody. >> reporter: president obama pulled a bit of an ace out of his sleeve sounding the alarm for a key voting block seniors. >> in a government shutdown, social security checks still go out on time. in an economic shutdown, if we don't raise the debt ceiling, they don't go out on time. >> reporter: he, again, pressured house speaker john boehner to fund the government and drop obama care concessions. >> call a vote. put it on the floor. and let every individual member of congress make up their own minds. they can show the american people, are you for a shutdown or not? >> reporter: a shooting on capitol hill brought into the chaos in washington. the two fellow officers injured are working without pay because of the shutdown. brianna keilar, cnn, washington. the shutdown not just