Democrats and Google executives worked arm in arm for years, particularly during the Obama administration. But when Sundar Pichai, Google’s chief executive, testifies before Congress on Tuesday, some of the toughest questioning is likely to come from Democrats.
The hearing will provide an early glimpse of how Democrats plan to approach Silicon Valley giants in the coming year as they assume control of the House of Representatives. And the testimony from Mr. Pichai, who is appearing before lawmakers after initially resisting, may provide clues about how he and the company will approach them.
Democratic lawmakers, angry about Russian misinformation online during the

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