Google has firmly denied assertions made in pre-dawn tweets by President Donald Trump that the tech giant skews search results against him and other conservative figures.

Trump, apparently spreading a theory put forward over the weekend by a conservative blog, asserted that 96% of results for the phrase “Trump News” produce posts from outlets he labeled “National Left Wing Media.”

He called it a “very serious situation” that “will be addressed.”

In a statement to Deadline, a Google spokesman repudiated the president’s claims.

“When users type queries into the Google Search bar, our goal is to make sure they receive the most relevant answers in a matter of seconds,” the statement said.

“Search is not used to set a political agenda and we don’t bias our results toward any political ideology. Every year, we issue hundreds of improvements to our algorithms to ensure they surface high-quality content in response to users’ queries. We continually work to improve Google Search and we never rank search results to manipulate political sentiment.”