Shares of Google parent Alphabet plunged nearly 5% early Monday in the first trading session since President Trump’s Justice Department confirmed it is seeking a breakup of the online search

Alphabet Inc.'s Google is urging the U.S. government to reconsider its antitrust cases, warning that potential breakup proposals could harm the American economy and national security.

President Trump and his predecessor Joe Biden now largely agree on a major question that has the potential to reshape the tech world: Google should be broken up. Where they differ is what the tech giant should do with its AI investments.