SACRAMENTO, Calif. — An emotional Sherri Papini formally admitted Monday that she made up her 2016 “kidnapping” from Redding, pleading guilty in federal court in Sacramento to a count of making false statements to a federal agent and mail fraud, part of a plea agreement she worked out after her arrest six weeks ago. Papini, 39, appearing before Senior U.S. District Judge William B. Shubb via Zoom, wiped her nose and appeared on the verge of tears as she sat in her lawyer’s office for the 35-minute hearing and told the judge she was guilty of the hoax. “How do you feel today?” the judge asked a…