Campbell is leading the Republican race to face Barbara Boxer for US Senate in California. His positions on Israel as a Congressman has made him controversial. See Daniel Halper's post at The Weekly Standard, for instance: Tom Campbell's Israel Problem

Bruce Kesler has done some important footwork and asked Campbell some very specific questions. Well worth reading his answers: Tom Campbell Positions On Israel. I can't say that I see anything there to take issue with.

Now, that's not necessarily the final word. Some very anti-Israel people are perfectly capable of sounding reasonable in isolation, while singing at least in a different key when they're among friends. I don't know enough about Campbell to sort that. As I said, the answers and explanations Campbell offers Kesler sound perfectly fair.