Other eyebrow raising attendees include James O'Keefe, the guerrilla journalist whose group Project Veritas tried to trick reporters at the Washington Post by planting a source who told the paper that she had been impregnated as a teenager by failed Republican Senate candidate Roy Moore; Charlie Kirk, the founder of the right-wing student group Turning Point USA who sometimes posts misleading information on social media; and Benny Johnson, the journalist-turned-activist who was sacked for plagiarism by BuzzFeed and demoted at the Independent Journal Review for violating company standards.
Senator Mark Warner, a Democrat, said that instead of focusing on "combating Russian social media misinformation, punishing anti-competitive practices, or protecting Americans' data and privacy, the president has invited trolls, conspiracy theorists, anti-Semites, and the whole comments section to the White House".
In his 50-minute address, Trump reflected on some of the spelling and punctuation mistakes he has made on Twitter, bemoaning how they are jumped on by the media.
U.S. President Donald Trump frequently uses Twitter to convey messages, however, did not invite Twitter or Facebook to the summit.
Many representatives from major tech sites such as Google have spent time recently testifying before Congressional committees, where they have issued similar denials, while they continue to suppress conservatives and restrict dissenting opinions with impunity.
At a White House social media "summit," Trump excluded internet firms from the gathering of conservative activists who have been curbed on social media. Two of the people said Parler in particular isn't ready.
"Project Veritas can be synergistic with the Trump administration to pull back the curtain surrounding Big Tech", O'Keefe said in a statement. "Enforcing basic standards of decency on social media isn't censoring conservative speech". Marsha Blackburn, R-Tenn., who have accused Twitter in the past of limiting the reach of their tweets.
"No private company should be browbeaten by the government into giving a pass to objectionable content that violates company policies", CCIA president Ed Black said in a statement.
In a Twitter post fired off before the summit on Thursday, Trump said the "tremendous dishonesty, bias, discrimination and suppression practiced by certain companies" would be a key focus. We have seen no public response from any of the social media giants and they would be wise to do so with care.
This prompted laughter from the audience, which included many prominent right-wing social media activists.
He will also be inviting members of Congress to the meeting, and perhaps some conservative social media users. Frank Pallone, who leads the House's top tech committee.