WASHINGTON – The White House and a bipartisan group of senators will launch an effort next week to jump-start negotiations to overhaul the immigration system, an issue that has languished in Washington for years.

Obama will begin his second-term immigration push during a trip Tuesday to Las Vegas. The Senate working group is also aiming to outline its proposals at about the same time, according to a Senate aide.

Even before those plans are formally unveiled, there is emerging consensus on several components, most notably the need for some kind of pathway to citizenship for the 11 million illegal immigrants already in the United States.