Dorsey and Facebook Chief Operating Officer Sheryl Sandberg appeared before the US Senate Intelligence Committee to testify about alleged foreign interference via social media in American elections, as well as about other malicious behaviour often seen on these platforms.
In prepared testimony released Tuesday before a Senate hearing Wednesday, Twitter chief executive officer Jack Dorsey says, "Twitter does not use political ideology to make any decisions, whether related to ranking content on our service or how we enforce our rules".
Google declined to send a top executive, so the company's absence is marked by a glass of water and empty chair in the hearing room.
Facebook Chief Operating Officer Sheryl Sandberg acknowledged that the social media network failed to crack down on attempts from Russian Federation to influence the 2016 USA presidential elections, according to AFP.
Dorsey was to appear later before a House committee amid complaints from Republicans that social media companies have shown evidence of bias against conservatives.
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"We were too slow to spot this and too slow to act", Sandberg told the committee in her opening statement.
"I'm deeply disappointed that Google ― one of the most influential digital platforms in the world ― chose not to send its own top corporate leadership to engage this committee", he said.
Facebook, Twitter and other technology firms have been on the defensive for many months over political influence activity on their sites and concerns over user privacy.
Thirteen Russians were indicted earlier this year on charges of an elaborate social media plot to disrupt the 2016 USA presidential election. Google offered another executive instead, and the committee said no. "It violated the values of our company and of the country we love".
The Twitter CEO will be facing the US Congress in another session separate from the hearing with Google and Facebook executives.
On Wednesday, September 5, at 1:30 pm EST (September 6, 1:30 am Manila time), Dorsey will discuss the social media platform's algorithms and the way it moderates its content. Tom CottonThomas (Tom) Bryant CottonThe Hill's Morning Report - Senate battlefield grows with 70 days until midterms Grassley: Trump will tackle prison reform "soon after" the midterms Trump: No action on criminal justice reform before midterms MORE (R-Ark.), Sandberg and Dorsey said they would not do business with China in a way that could undermine US national security, as Cotton accused Google of doing.