WASHINGTON — President Barack Obama said Wednesday he would work with Congress on new war powers to fight Islamic State militants and expressed cautious optimism about whether the international faceoff over Iran’s nuclear program will be resolved — two issues that could prove harder for the White House to maneuver with Republicans in charge on Capitol Hill.
When he approved U.S. airstrikes in late September against extremists who have captured territory across Syria and Iraq, Obama used legal grounds of congressional authorizations that President George W. Bush relied on more than a decade ago.
Now, however, Obama said a new military authorization is one of a few areas where he will seek to work with lawmakers during the lame-duck session before a new Congress is seated in January.
On Iran, Obama said it was an “open question” as to whether international negotiators and Iran can reach a deal over Iran’s nuclear program. With a Nov. 24 deadline looming, Obama said the next three to four weeks will be key.
Many Republican leaders have criticized the administration’s desire to ease sanctions on Iran while the talks are underway, or to embrace any agreement that would allow Iran to continue generating nuclear power.



