"Could you imagine having Sleepy Joe Biden, or @AlfredENeuman99, or a very nervous and skinny version of Pocahontas (1000/24th), as your President, rather than what you have now, so great looking and smart, a true Stable Genius!"
Trump delivered remarks Monday afternoon in the East Room of the White House alongside Cabinet members such as Environmental Protection Agency Administrator Andrew Wheeler and Interior Secretary David Bernhardt.
In contrast, 92% of veterans who identified as Republican or said they leaned toward the Republican party approved of Trump.
Finally, he ended his Twitter tirade bragging about his looks and mental stability.
Social media website Twitter crashed today shortly before the White House summit on social media was set to take place.
Former Vice President Al Gore, a co-winner of the 2007 Nobel Peace Prize for his climate activism, tweeted that Trump "is refusing to see reality".
Trump says a "big subject' of the summit "will be the tremendous dishonesty, bias, discrimination and suppression practiced by certain" companies". And the energy secretary, Rick Perry, called the event "the chance to tell a story that often doesn't get told", before quickly noting that the USA is the top oil producer in the world.
Trump's speech came after rainfall around Washington broke seasonal records, raised creeks up to 11 feet (3.3 meters) and flooded the White House basement.
Some conservatives have claimed that they are targeted by companies such as Facebook and Twitter who want to suppress their political opinions. More recently, a NY appellate court upheld an earlier decision that Trump violated the First Amendment by blocking Twitter users.
Facebook Inc (FB.O), Twitter Inc and Alphabet Inc's (GOOGL.O) Google declined to comment on Trump's announcement that he would call them to the White House to a meeting, but three tech officials said they had no knowledge of the meeting before Trump announced it. He surprised many Democrats in January when he traveled to Iowa, home to the nation's first presidential caucus, to declare that he would focus entirely on the impeachment effort instead of seeking the White House.
Trump, however, has accused Twitter, without evidence, of making it "very hard for people to join me" and "very much harder for me to get out the message".
"Internet companies depend upon their users' trust from across the political spectrum to grow and succeed". He leads a House Judiciary subcommittee that has opened a bipartisan probe into the tech giants' market conduct.
This comes at a time when the president, an enthusiastic user of social media - especially Twitter, which he often deploys to rally his base - has been criticizing the social media platforms, accusing them of silencing those who support him.