"Undocumented citizens should have to come forward, they should have to self-identify, they should pay a penalty and back taxes, and then I think they … go on a probationary period … and then the border needs to be secured," Schock said in the video, which was posted to YouTube.
"The Senate bill has a provision in there that somebody in the administration ultimately makes a determination that the border is secured, before those who have legal status can then be in the line for citizenship," he added.
In a Thursday post, CIS Legal Policy Analyst Jon Feere argued first that there is "no such thing as an 'undocumented citizen,' " and said Schock appears to have "embraced activist language created by La Rasa and the ACLU."
Feere also argued that Schock appears to be too willing to trust the Obama administration to decide when the border is secure. Republicans in the House and Senate have made similar arguments that the Senate bill can be read to allow illegal immigrants to gain legal status and then apply for citizenship before most border measures are in place.
"Schock apparently has a lot of faith in the Obama administration measuring the status of border security, noting that 'somebody in the administration ultimately makes a determination that the border is secured,' " Feere said.
In the video, Schock said his understanding of the Senate bill is that the border would have to be secure before illegal residents can apply for citizenship. When asked if he supports something along those lines, he said "yeah."
Schock's support for the bill put him in a small group of House Republicans that appears to support something along the lines of the Senate's immigration bill. Some say there could be enough GOP support to pass a bill and get to a Senate conference.
But GOP leaders also have to grapple with GOP opponents of moving any immigration bill forward. Opponents of the Senate bill fear that passage of even just a border security bill in the House could lead to a House-Senate conference that then agrees to a pathway to citizenship for illegal residents.
While many see CIS as a right-leaning group, the group says it does not have a liberal or conservative bent. However, the group acknowledges that many of its analysts "are animated by a 'low-immigration, pro-immigrant' vision of an America that admits fewer immigrants but affords a warmer welcome for those who are admitted."
Feere's post concluded by saying Schock "appears to be on the pathway to becoming one of 'Schumer's Republicans,' a politician spending his limited political capital to help Obama have a successful second term."