Newly elected House Speaker Paul Ryan dismissed the possibility of working with President Barack Obama on overhauling U.S. immigration policy.

Ryan told several news outlets on Sunday that he would not work with Obama on the matter, “since the president’s unilateral actions to give legal protections to some of the undocumented had poisoned the proverbial well,” The Huffington Post reported.

“I think he's proven untrustworthy on this issue. He tried to go around Congress with an executive order to rewrite laws unilaterally. Presidents don't write laws. Congress writes laws,” Ryan told ABC’s “This Week.” “So yes, I do not believe we should and we won't bring immigration legislation with a president we cannot trust on this issue. If we believe and have consensus on things like border enforcement, and interior security, then that's fine.”