COLLEEN LONG, ZEKE MILLER and MICHAEL BALSAMO
WASHINGTON (AP) — U.S. officials sought to determine Sunday whether extremist groups had infiltrated police brutality protests across the country and deliberately tipped largely peaceful demonstrations toward violence — and if foreign adversaries were behind a burgeoning disinformation campaign on social media.
As demonstrations spread from Minneapolis to the White House, New York City and overseas, federal law enforcement officials insisted far-left groups were stoking violence. Meanwhile, experts who track extremist groups also reported seeing evidence of the far-right at work.
Investigators were also tracking online interference and looking into whether foreign agents were behind the effort. Officials have seen a su