rights. these families are hard-working members of our community and our country. this brutal action will terrorize children and tear families apart. >> reporter: department of homeland security officials are suggesting they are looking to cast a wide net. >> they're absolutely going to happen. there's approximately $1 million people in this country with removal orders. and of course, that isn't what i.c.e. will go after in this, but that's the pool of people who have been all the way through the due process chain. >> reporter: an echo of what the president told reporters at the g-20 summit in japan. >> the only problem is that they have to come in through a process. they have to come in legally. but, yeah, we will be removing large numbers of people. >> reporter: despite the potential for harrowing images of families being separated by i.c.e. agents, republicans are backing the president's roundup. >> i don't know the day that it takes place, but if you have come to this position, you've been here years, have gone through a court system, have been found that you have to be deported, you have to follow the