https://www.washingtonpost.com/world/national-security/trump-revealed-highly-classified-information-to-russian-foreign-minister-and-ambassador/2017/05/15/530c172a-3960-11e7-9e48-c4f199710b69_story.html?hpid=hp_hp-top-table-high_trumpintel-0504pm%3Ahomepage%2Fstory&utm_term=.2b7c95138119
"The president’s disclosures to the Russian foreign minister and ambassador in their Oval Office meeting last week jeopardized a critical source of intelligence on the Islamic State — an information-sharing arrangement considered so sensitive that details have been withheld from allies and tightly restricted even within the U.S. government, current and former U.S. officials said. Trump appeared to be boasting of the “great intel” he receives when he described a looming terror threat, according to an official with knowledge of the exchange. As president, Trump has broad authority to declassify government secrets, making it unlikely that his disclosures broke the law."
