AP-NORC Poll: Most at least partly confident in Russia probe

FILE - In this June 21, 2017 file photo, former FBI Director Robert Mueller, the special counsel probing Russian interference in the 2016 election, arrives on Capitol Hill for a closed door meeting before the Senate Judiciary Committee in Washington. U.S. special counsel Robert Mueller has yet to release his report about alleged Russian meddling in the 2016 U.S. presidential election but Moscow has already rehearsed its response, dismissing Mueller's investigation as part of the U.S. political infighting. (AP Photo/Andrew Harnik, File)

WASHINGTON — As the special counsel investigation into Donald Trump’s presidential campaign winds down, a new poll finds most Americans are at least moderately confident that Robert Mueller’s probe has been fair and impartial.