MARK W. BENNETT, District Judge.
On February 18, 2016, an Indictment charged defendant Christopher Scott Jepsen with one count of possession of child pornography, after a prior conviction of sexual abuse in the third degree in Iowa state court, in violation of 18 U.S.C. §§ 2252(a)(4)(B) and 2252(b)(2). Jepsen initially pleaded not guilty to the charge, but on April 23, 2018, he entered a notice of his intention to plead guilty in this case.
On May 7, 2018, Jepsen appeared before United States Magistrate Judge Kelly K.E. Mahoney and entered a plea of guilty to the sole count of the Indictment pursuant to a Rule 11(c)(1)(C) plea agreement, a copy of which was entered into evidence. On May 8, 2018, Judge Mahoney filed a Report And Recommendation that Jepsen's guilty plea be accepted, and on May 10, 2018, she filed an Amended Report And Recommendation making the same recommendation. Judge Mahoney explained, inter alia, that she had advised Jepsen that, at the sentencing hearing, the district judge would consider whether or not to accept the plea agreement and impose the agreed sentence. She explained that she advised Jepsen, further, that if the district judge decided to accept the plea agreement and impose the agreed sentence, then Jepsen would receive the agreed sentence, but if the district judge decided to reject the plea agreement and impose a different sentence, then Jepsen would have an opportunity to withdraw his plea of guilty and plead not guilty.
No party filed objections to the Report And Recommendation by the deadline of May 24, `. Consequently, I now undertake the necessary review of Judge Mahoney's recommendation to accept Jepsen's guilty plea in this case.
A district judge must review a magistrate judge's Report And Recommendation in a criminal case under the following standards:
28 U.S.C. § 636(b)(1); see also FED. R. CRIM. P. 59(b). Thus, when a party objects to any portion of a Report and Recommendation, the district judge must undertake a de novo review of that portion.
On the other hand, any portion of a Report and Recommendation to which no objections have been made must be reviewed under at least a "clearly erroneous" standard. See, e.g., Grinder v. Gammon, 73 F.3d 793, 795 (8th Cir. 1996) (noting that when no objections are filed "[the district court judge] would only have to review the findings of the magistrate judge for clear error"). As the Supreme Court has explained, "[a] finding is `clearly erroneous' when although there is evidence to support it, the reviewing court on the entire evidence is left with the definite and firm conviction that a mistake has been committed." Anderson v. City of Bessemer City, 470 U.S. 564, 573-74 (1985) (quoting United States v. U.S. Gypsum Co., 333 U.S. 364, 395 (1948)).
A district judge may elect to review a Report and Recommendation under a more-exacting standard even if no objections are filed:
Thomas v. Arn, 474 U.S. 140, 150 (1985).
Because the parties have filed no objections to the Report And Recommendation, I have reviewed the Report And Recommendation for clear error. Grinder, 73 F.3d at 795; 28 U.S.C. § 636(b)(1); see also FED. R. CRIM. P. 59(b). Based on that review, I am not "left with the definite and firm conviction that a mistake has been committed." Anderson, 470 U.S. at 573-74. As such, I hereby