Mueller examining Cambridge Analytica, Trump campaign ties

Photo caption: Rep. Jerrold Nadler, D-New York, center, the ranking member on the House Judiciary Committee, is joined by Democratic members of the House Judiciary Committee, from left, Rep. Luis Gutierrez, D-Illinois, Rep. Bradley Schneider, D-Illinois, and Rep. Hank Johnson, D-Georgia.

WASHINGTON — Special counsel Robert Mueller is scrutinizing the connections between President Donald Trump's campaign and the data mining firm Cambridge Analytica, which has come under fierce criticism over reports that it swiped the data of more than 50 million Facebook users to sway elections.

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