Transcript for Senators voice concerns over DHS shake-up
I'm Catherine farmers here on Capitol Hill Republicans up here are coming to president trumps defense about the upheaval at the Department of Homeland Security. And they're actually taking the blame they're saying that they are actually to blame for the increasing number of migrants coming. Across the southern border saying this is because of congress' inability to act now senate majority leader. Mitch McConnell says he thinks the president is legitimately concerned about the border but turned it back on congress saying quote we know that we have not handle immigration as well. Now while other Republicans have come to oust the DHS secretary history Nelson defense they've since she was tasked with an impossible mission but they do. And then it's on then to fix the immigration issues from a policy. Standpoint senator John Cornyn said. I think she did a great job given me and possible hand she had been developed and cost trump ally senator Lindsey Graham says it's not about who's hit. It's about having congress acting meanwhile Democrats are calling the president out for the chaos at the department. And implement it could be two other top officials leaving the department as soon as this week which raises the prospect of a much broader cleaning of house. Among the agency. I'm Catherine plotters reporting for ABC news why.
This transcript has been automatically generated and may not be 100% accurate.