A House immigration reform proposal, once thought dead for the 113th Congress, is coming back to life, perhaps by the end of the month, but passage of legislation faces long odds against a GOP deeply divided on the issue.

House Speaker John Boehner, R-Ohio, plans to unveil “principles” of immigration reform in the coming weeks, perhaps as early as the Republican conference retreat at the end of January, he told GOP lawmakers this week, and they’ll likely focus on committee-passed bills that focus on improving enforcement of immigration laws and increasing the flow of both high- and low-skilled workers.