Google Under Threat in Courts After Tech Legislative Push Stalls

The Justice Department’s move to break up Alphabet Inc.’s Google marks an attempt to disrupt the tech industry in a way that Congress tried but failed to carry out.

The Biden administration’s proposal, following a court win in its landmark case against Google, applies concepts that surfaced in recent legislative debates, such as tech giants’ ability to disadvantage rivals.

But it also marks the opening of another long fight—one that could take multiple appeals to resolve. Donald Trump’s election win raises additional questions about how leaders in his second administration will handle the case.

For some advocates, the protracted, likely ...