The information that Trump leaked to the Russians visiting the White House was that Israel had hacked ISIS computers.

Hey you wanna hear some of the nuclear codes I memorized?

This is from a New York Times article detailing how hard it is to use cyber weapons against ISIS: 

Even one of the rare successes against the Islamic State belongs at least in part to Israel, which was America’s partner in the attacks against Iran’s nuclear facilities. Top Israeli cyberoperators penetrated a small cell of extremist bombmakers in Syria months ago, the officials said. That was how the United States learned that the terrorist group was working to make explosives that fooled airport X-ray machines and other screening by looking exactly like batteries for laptop computers.

The intelligence was so exquisite that it enabled the United States to understand how the weapons could be detonated, according to two American officials familiar with the operation. The information helped prompt a ban in March on large electronic devices in carry-on luggage on flights from 10 airports in eight Muslim-majority countries to the United States and Britain. 

It was also part of the classified intelligence that President Trump is accused of revealing when he met in the Oval Office last month with the Russian foreign minister, Sergey V. Lavrov, and the ambassador to the United States, Sergey I. Kislyak. His disclosure infuriated Israeli officials.

To be clear this incredibly sensitive information was just revealed to two Russian spies simply as a way for Trump to brag about what great classified information to which he had access.

Imagine how that must have made the Israeli intelligence community feel, and how it impacted our allies ability to trust this country with confidential information that if revealed might put their agents in danger or reveal tactics that could help our mutual enemies.

And somebody tell me what information leaked about Donald Trump even comes close to being as damaging to our national security as what he simply volunteered to two Russian operative who should never have been allowed into the White House in he first place.