NEW YORK—President Barack Obama is reassuring Jewish supporters that his administration is committed to the security of Israel. He says: "We don't compromise when it comes to Israel's security."

Obama was speaking to a group of campaign contributors at the Upper East Side home of Jack Rosen, a prominent businessman and chairman of the American Jewish Congress. Obama commented after Rosen mentioned "concerns" within the Jewish community about the U.S.-Israeli relationship.

Rosen added that America has never been as supportive of Israel's security as it has been under Obama.

Obama said no ally is more important than the state of Israel.

Obama angered Israel's supporters this year by asserting that negotiations over future Palestinian borders begin with lines Israel held before capturing the West Bank and Gaza in 1967.

© Copyright 2011 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.