Officials tell paper Trump revealed highly classified information on ISIS to the Russian foreign minister and ambassador.

President Donald Trump revealed highly classified information to the Russian foreign minister and ambassador in a White House meeting last week, current and former U.S. officials told The Washington Post on Monday.

The sources, who were not named, claimed Trump’s disclosures jeopardized a critical source of intelligence on the Islamic State (ISIS) jihadist group.

The information Trump relayed had been provided by a U.S. partner through an intelligence-sharing arrangement considered so sensitive that details have been withheld from allies and tightly restricted even within the U.S. government, the officials said.

After Trump’s meeting, senior White House officials took steps to contain the damage, placing calls to the CIA and the National Security Agency.

“This is code-word information,” a U.S. official familiar with the matter told the newspaper, using terminology that refers to one of the highest classification levels used by American spy agencies.

Trump “revealed more information to the Russian ambassador than we have shared with our own allies,” the official claimed.

The newspaper’s report comes amid an investigation into possible links between the Trump campaign and Moscow.

Trump last week hosted Russian Foreign Minister Sergei Lavrov and Ambassador Sergey Kislyak, a key figure in earlier Russia controversies who was revealed to have had conversations with former national security adviser Michael Flynn which led to the latter’s dismissal.

So far, there have been three US presidents against whom the impeachment procedure has been opened: Johnson (demoted in the 1860s by the impeachment procedure), Nixon (resigned as a result of the Wateragate scandal) and Clinton (impeachment following the Monica Lewinsky scandal ).

It is massively betting that Donald Trump will not end his mandate, given his campaign and the problems of the first months of his mandate. But what are the chances to be dismissed as a result of leaked classified information, as Trump demanded Clinton’s closure of such allegations?