Jeffrey Donaldson, former leader of the Democratic Unionist Party and one of Northern Ireland's most prominent political figures, has been sentenced to 15 years in prison for 18 child sex offences committed against two girls between 1985 and 2008. Judge Paul Ramsey described the case as "disturbing and disquieting" and Donaldson's trajectory as "a catastrophic descent into disgrace." The 63-year-old stared straight ahead as the sentence was handed down. The conviction covers one count of rape, 13 counts of indecent assault, and four counts of gross indecency — a pattern of abuse spanning more than two decades while Donaldson rose through the ranks of unionist politics to become Northern Ireland's longest-serving MP at Westminster. He denied all charges and is seeking to appeal. Judge Ramsey noted pointedly that Donaldson had "doubled down on his denials" and offered no apology or expression of shame to his victims. Due to a legal technicality — the offences predate a sentencing law change — Donaldson qualifies for automatic remission and will likely serve roughly seven-and-a-half years. One victim described the abuse as "the worst moment of her life." The other said her childhood had been stolen, leaving her carrying feelings of shame ever since. Neither victim can be identified for legal reasons. The political fallout is substantial. Donaldson became DUP leader in 2021, inheriting the party founded by Ian Paisley during Northern Ireland's decades of sectarian violence. He was central to negotiating the post-Brexit trade deal with the UK government that ended the DUP's two-year boycott of the Stormont power-sharing assembly — a deal struck just two months before his arrest in March 2024. He was knighted by Queen Elizabeth in 2016 for political services; he asked for the knighthood to be renounced two days after conviction. The institutional dimension is hard to ignore. Donaldson operated at the highest levels of British and Northern Irish politics for decades while committing these offences. He signed deals at 10 Downing Street, shaped Brexit negotiations, and was expected to lead his party into the next general election. The question is not merely about one man's crimes but about the structures that allowed a predator to accumulate power unchecked for 23 years. His wife, Eleanor Donaldson, was found by the jury to have aided and abetted her husband's offences. She also denied the charges but was ruled unfit to stand trial last month due to mental health issues, meaning she cannot face criminal conviction — a legal outcome that will leave many feeling that full accountability remains incomplete. The DUP now faces a reckoning that goes beyond leadership succession. The party's credibility on moral authority — historically a core part of its brand rooted in Paisley's Protestant conservatism — is damaged in ways that cannot be repaired by a press statement. Northern Ireland's fragile power-sharing institutions, restored partly through Donaldson's own negotiations, must now operate under the shadow of what those negotiations were concealing.