Trump snubbed the annual celebration of the White House press corps a year ago, the first time a president skipped the Washington tradition since 1981 when Reagan was recovering from an assassination attempt. Sanders responded by saying, "Man, this is a tough crowd".
"A large group of Hollywood actors and Washington media are consoling each other in a Washington ballroom right now", President Donald Trump said at a rally previous year.
He also asked the young ones, "Should we leave your parents out here?"
He praised the children as being "well behaved" and invited them into the Oval Office. "Do you want your parents in the Oval Office or out?" Sanders gave a kid-friendly answer, explaining that Comey "did some things that weren't really very nice", one CBS News correspondent reported.
Life support 'withdrawn' from ill toddler Alfie Evans after parents lose appeal
As they ran towards the main doors a squad of police officers scrambled to block their way, forming a line to repel the intruders. Alfie is in a "semi-vegetative state" as a result of a degenerative neurological condition doctors have been unable to identify.
Then, turning to the students posed on the stairs, he quipped, "See if you can hurry up and replace them".
Jake Turx, a correspondent for the Orthodox Jewish weekly Ami Magazine, who was cut off and told to sit down by the president at a briefing previous year when he tried to ask a question about anti-Semitism, had a proud dad moment.
"I agree. Come on, let's go", Trump said. Some say that decision was a sign the president's relationship with the media was waning, but the White House said it was just bad timing.
Sanders made told the roomful of journalists' children that Trump will travel to the United Kingdom on July 13 to meet with British Prime Minister Theresa May.