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FILE - In this June 21, 2017, file photo, special counsel Robert Mueller departs after a meeting on Capitol Hill in Washington. Republicans who spent the early months of 2017 working with Democrats on investigations into Russian interference in U.S. elections have pivoted as the new year begins, leaving the conclusions of those congressional probes in doubt. As special counsel Robert Mueller has ramped up his own Russian investigation and brought charges against four of President Donald Trump's campaign advisers, and as midterm elections loom, Republicans have changed focus in their own Russia probes. (AP Photo/J. Scott Applewhite, File) J. Scott Applewhite