Support for Israel is nowadays a bedrock principle for Republican politicians, but it was not ever thus. Presidents Eisenhower and Nixon, for instance, both sought to move away from what they saw as their respective predecessors’ excessive favoritism toward the Jewish state. Identifying the presidency of Ronald Reagan as the decisive turning point, Tevi Troy traces the evolution of Republican attitudes:

[By the late 1970s, a] confluence of forces [was] remaking the Republican party. The growing evangelical support for Israel had its greatest impact in the South, fast becoming the GOP’s stronghold. And it coincided with Ronald Reagan’s eloquence in support of the Jewish state.

Reagan did not see eye to eye with the Israelis on every issue; he approved the sale of AWACS radar planes to Saudi Arabia in 1981, criticized the 1981 attack on Iraq’s reactor at Osirak, and was not supportive of Israel’s invasion of Lebanon in 1982. But Reagan spoke and thought of Israel in a manner new to American presidents. He saw that Israel was a strategic asset to the United States in the struggle against totalitarianism. Reagan recognized the alignment not only of interests but foundational Judeo-Christian beliefs: “Israel represents the one stable democracy sharing values with us in that part of the world,” he said.

Surveying news websites and social media on Sunday morning, I immediately found some intelligent and well-informed observers arguing that Iran deliberately warned the U.S. of its pending assault on Israel, and calibrated it so that there would be few casualties and minimal destructiveness, thus hoping to avoid major retaliation. In other words, this massive barrage was a face-saving gesture by the ayatollahs. Others disagreed. Brian Carter and Frederick W. Kagan put the issue to rest:

The Iranian April 13 missile-drone attack on Israel was very likely intended to cause significant damage below the threshold that would trigger a massive Israeli response. The attack was designed to succeed, not to fail. The strike package was modeled on those the Russians have used repeatedly against Ukraine to great effect. The attack caused more limited damage than intended likely because the Iranians underestimated the tremendous advantages Israel has in defending against such strikes compared with Ukraine.

But that isn’t to say that Tehran achieved nothing:

The lessons that Iran will draw from this attack will allow it to build more successful strike packages in the future. The attack probably helped Iran identify the relative strengths and weaknesses of the Israeli air-defense system. Iran will likely also share the lessons it learned in this attack with Russia.

Iran’s ability to penetrate Israeli air defenses with even a small number of large ballistic missiles presents serious security concerns for Israel. The only Iranian missiles that got through hit an Israeli military base, limiting the damage, but a future strike in which several ballistic missiles penetrate Israeli air defenses and hit Tel Aviv or Haifa could cause significant civilian casualties and damage to civilian infrastructure, including ports and energy. . . . Israel and its partners should not emerge from this successful defense with any sense of complacency.