From nytimes.com:
WASHINGTON — Speaker John A. Boehner would sorely like to help engineer an overhaul of immigration policy to bolster his legacy, help his party politically and address a difficult social and economic problem. He just cannot seem to persuade other Republicans, who see the immigration debate as a major threat to their drive to win the Senate and increase their House majority in November.
The tension between Mr. Boehner’s desire to forge ahead on immigration and a Republican sense that staying focused on the new health care law is the path to victory in the midterm elections contributed to the speaker’s sharp retreat on Thursday from his new push for an immigration consensus.