Updated

ABOARD AIR FORCE ONE -- President Obama said Wednesday that there "may not be an appetite" in Congress to deal with immigration immediately after going through a tough legislative year.

With energy legislation on the table and midterm elections approaching, Obama said he didn't want to force an immigration bill through Congress "just for the sake of politics." Still, he said discussions on the issue must move forward in a way that can garner the support of the American people.

"We've gone though a very tough year and I've been working Congress very hard, so I know there may not be an appetite immediately to dive into another controversial issue," the president told reporters aboard Air Force One returning with him to Washington from a Midwest trip.

The issue of immigration bubbled to the surface in recent weeks after Arizona Gov. Jan Brewer signed a controversial bill into law requiring local and state law enforcement to question people about their immigration status if there's reason to suspect they're in the country illegally and makes it a state crime to be in the United States illegally.

Obama has sharply criticized the law, asking the Justice Department to look into whether it violates civil rights. On Wednesday, he said the law was a shortcut that would wind up "polarizing the situation insread of solving the problem."

The president said that while he believed he could get a majority of Democrats to support immigration reform, he still needs help from Republicans.

Senate Majority Leader Harry Reid had talked about moving immigration ahead of climate change legislation, a suggestion that splintered bipartisan support for the climate bill. Then Reid said Tuesday he was willing to bring up climate change legislation ahead of an immigration bill, but Republican Sen. Lindsey Graham was still angry that Reid considered putting off the climate bill.

Reid said the long-delayed climate bill "is much further down the road in terms of a product" than the immigration measure, which remains unwritten.

An immigration proposal by three Democratic senators calls for more federal enforcement agents and other border security-tightening benchmarks before illegal immigrants could become legal U.S. residents, according to a draft of the legislation obtained Wednesday by The Associated Press. The bill is being developed by Reid of Nevada, Charles Schumer of New York and Robert Menendez of New Jersey.