[rmlew]

You forgot the next sentence:
But that is not in our interests. It is not even in Israel's interest. For it has been Israel's behavior, and uncritical U.S. support for that behavior, that produced this victory for Hamas. To continue on that road is to arrive at, literally, a dead end.
He is mocking Israel's fears in an "I told you so".
Of course, Israel did not want Hamas to be in the elections and did not want Jerusalemite Arabs to vote in it. The US pushed Israel into accepting these.
Of course, Pat can't see teh US bullying Israel into suicidal behavior. That might undermine his biases.

[RWE]

"Understandably, the Israelis are close to hysterical over the landslide for Hamas and are on a diplomatic campaign to have all donors end all aid to a Palestinian Authority dominated by Hamas.But that is not in our interests. It is not even in Israel's interest. For it has been Israel's behavior, and uncritical U.S. support for that behavior, that produced this victory for Hamas."

Mock 1. To treat with ridicule or contempt

its a gross exaggeration to claim that Buchanan was treating anyone with ridicule or contempt in the above quote.