California Gov. Gavin Newsom said he was launching a review of TikTok as skepticism of the app’s new U.S. business spread on social media.

California Gov. Gavin Newsom said Monday that he was launching a review of TikTok after complaints began over the weekend, with some users alleging censorship as they tried to post videos related to Immigration and Customs Enforcement and Saturday’s fatal shooting in Minneapolis.

TikTok, which recently split off its U.S. operations in a deal backed by the Trump administration, has attributed the issues to a power outage at a data center.

“It’s time to investigate,” Newsom wrote on Threads. “I am launching a review into whether TikTok is violating state law by censoring Trump-critical content.”