A broad Chinese hacking campaign against U.S. telecommunication networks targeted the phones of Republican presidential nominee Donald Trump and his running mate, Sen. JD Vance, two sources familiar with the matter say. Another source told NBC News that people affiliated with the campaign of Vice President Kamala Harris were also targeted.

The staff of Senate Majority Leader Chuck Schumer, D-N.Y., was also targeted, a Democratic source said.

None of the four sources clarified whether campaign…