Technology executives at odds with the Trump administration see a bigger problem than attending a White House brainstorming session Monday—not attending.

Silicon Valley has been among the most vocal critics of President Donald Trump over his positions on issues such as climate change and immigration. Still, representatives from Apple Inc., Amazon.com Inc., Microsoft Corp. and Alphabet Inc.’s Google, companies that have opposed his policies, are expected to make the cross-country trip to ensure their voices are heard.

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