Prior to attending law school, Manglona worked in her family's real estate management business. After graduating from law school, she served as a law clerk for two of the judges of the Superior Court of the Commonwealth of the Northern Mariana Islands. She then joined the Office of the Attorney General, serving first in the criminal division and later in the civil division. She became Deputy Attorney General of the Northern Mariana Islands early in 2002 and became the first female Attorney General of the Northern Mariana Islands in November 2002. She was appointed to the Superior Court in May 2003 and resigned from that post in June 2011 to take up her current post in the District Court.[3] Her successor as judge, Joseph James Norita Camacho, was sworn into office as a judge on November 19, 2011.[4]
District court service
On January 26, 2011, President Barack Obama nominated Manglona to the District Court for the Northern Mariana Islands. The Senate Judiciary Committee held a hearing on her nomination on March 16, 2011, and reported her nomination favorably on April 7, 2011.[5] On July 26, 2011, the Senate confirmed her nomination by voice vote. She received her commission on July 29, 2011, and took her oath of office on July 30, 2011.[6] Her commission expired on July 28, 2021, at which time her term would have ended, although by rule it continued until she was either reappointed or her successor chosen and qualified.[7]
On August 30, 2023, President Joe Biden announced his intent to reappoint Manglona as a judge of the District Court for the Northern Mariana Islands.[8] On September 11, 2023, her nomination was sent to the Senate.[9] On November 15, 2023, a hearing on her nomination was held before the Senate Judiciary Committee.[10] On December 7, 2023, her nomination was reported out of committee by a 20–1 vote.[11][12] On January 3, 2024, her nomination was returned to the president under Rule XXXI, Paragraph 6 of the United States Senate[13] and she was renominated on January 8, 2024.[14] On January 18, 2024, her nomination was reported out of committee by a 21–0 vote.[15][16] On April 15, 2024, the United States Senate voted on the motion to table her nomination and it failed by a 39–50 vote.[17] Later that day, cloture was invoked on her nomination by an 84–3 vote.[18] On April 16, 2024, her nomination was confirmed by a 96–2 vote.[19] She was sworn in to her second term on April 22, 2024, by Guam District Judge Frances Tydingco-Gatewood.[20]
On June 26, 2024, Manglona heard the high-profile plea deal case of WikiLeaks founder Julian Assange.[21][22][23] She approved the plea deal, which had been negotiated with Assange's lawyers by the U.S. Department of Justice, and sentenced Assange to prison time already served in the United Kingdom. Assange was freed immediately and left Saipan for Australia.[21]
^"Why is Julian Assange headed to the little-known island of Saipan?". SBS News. Retrieved 2024-06-25. the hearing is to take place there because of Assange's opposition to travelling to the continental US, and the court's proximity to Australia… Assange is due to be sentenced to 62 months of time already served at a hearing on the island of Saipan at 9am local time (9am AEST) on Wednesday… Saipan Tribune reports Assange will appear before chief judge Ramona Villagomez Manglona…
^"Julian Assange leaves UK after reaching plea deal with US". The Irish News (US). Retrieved 2024-06-25 – via MSN. A letter to the United States chief judge of the District Court for the Northern Mariana Islands Ramona V Manglona, as seen by the PA news agency, also confirmed Assange intends to return to Australia once proceedings conclude.