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>> the nature of the asylum seekers has also change. in decades past they were largely single men looking for work. now many families and children are coming seeking asylum. and that is raising a whole different set of political and practical challenges in dealing with them, erin. >> tom, certainly many challenges. asylum hearings can take years, they do take years. all of a sudden the problem doesn't go away. thank you. outfront republican congressman from illinois rodney davis. congressman let me start with the basic question. what do you think is the driving the surge which we certainly see...

>> ron's a good man, but we're going in a tougher direction. we want to go in a tougher direction. >> reporter: and the purge at homeland security continued today, with removal of the head of the secret service, randolph alles. it comes with the president clearly frustrated that his get-tough policies have failed so far to stem the surge of migrants at the southern border. >> our country is full, our area is full, the sector is full. we can't take you anymore. i'm sorry, can't happen. so, turn around. that's the way it is. >> reporter: the numbers are stark. officials estimate as many as a mil...