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On Sunday, George Mitchell, President Obama's Middle East envoy, arrived in Israel to confer with its leaders. Also visiting this week are Defense Secretary Robert Gates, national-security adviser James Jones, and Gulf States envoy Dennis Ross. It's a full-court press on the Israelis, and the American wish list is long. They want Israel to stop expanding settlements; to stop building Jewish neighborhoods in East Jerusalem; and for hawks in the government to chill out while the U.S. is negotiating with Iran. And yet, odds are, they'll come back to Washington empty-handed, for reasons having to do as much with atmospherics as policy: Team Obama just doesn't have Israel's full trust.

But there is someone who does"”someone who could use a job, someone who argued...