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Wisconsin where hell visit a technical college as part of whats called fork worse development week. lets bring in our reporters for a preview of sessions testimony, the latest on the russia investigation. we have our cnn senior congressional reporter manu raju up on capitol hill. justice reporter laura jarrett is in washington. our national correspondent jason carroll covering the white house. manu, give us a preview of how this hearing is likely to unfold. >> a lot of tough questions likely to ...