Despite steep odds, the White House has discussed prospects for reviving a major overhaul of the nation's immigration laws, a commitment that President Obama has postponed once already. Obama took up the issue privately with his staff Monday in a bid to advance a bill through Congress before lawmakers become too distracted by approaching midterm elections. In the session, Obama and members of his Domestic Policy Council outlined ways to resuscitate the effort in a White House meeting with two senators -- Democrat Charles E. Schumer of New York and Republican Lindsey Graham of South Carolina -- who have...