Former president Donald Trump’s legal moves aimed at delaying a rape accuser’s defamation claims from reaching trial are in bad faith and, so far, succeeding, a judge said in a decision released as he rejected an attempt by Mr Trump to counter-sue.

Jean Carroll’s single claim of defamation “could have been tried and decided — one way or the other — long ago,” US District Judge Lewis Kaplan said.

In a written ruling, Judge Kaplan cited delays caused by Mr Trump’s legal tactics as he rejected the former president’s attempt to counter-sue Ms Carroll under a law sometimes used to challenge defamation lawsuits that unfairly make claims.

A countersuit could have been filed 14 months ago, Judge Kaplan wrote.

“The record convinces this court that the defendant’s litigation tactics, whatever their intent, have delayed the case to an extent that readily could have been far less,” the judge wrote.

Mr Trump’s attorney Alina Habba said: “While we are disappointed with the court’s decision today, we eagerly look forward to litigating this action and proving at trial that the plaintiff’s claims have absolutely no basis in law or in fact.”

Roberta Kaplan, a lawyer for Ms Carroll, said of the judge’s decision: “My client E Jean Carroll and I could not agree more.”

Ms Carroll, a long-time advice columnist for Elle magazine, wrote in a June 2019 book that Mr Trump raped her in the mid-1990s in an upscale Manhattan department store. Mr Trump denied it and questioned Ms Carroll’s credibility and motivations.

Judge Kaplan wrote of litigation delays, saying Mr Trump “attempted to evade” delivery of a copy of the lawsuit to his Manhattan residence or at the White House after it was originally filed in New York state court in November 2019. It was later moved to federal court.

Mr Trump then used “frivolous” legal challenges to delay progress of the lawsuit, the judge wrote, including claiming that the state court lacked jurisdiction over him and that the lawsuit could not proceed until an appeal in another woman’s lawsuit alleging sexual misconduct by Mr Trump was resolved.

The lawsuit cannot go to trial until the appeals court clarifies whether the defendant is Mr Trump or the US government.

In August 2020, Mr Trump reportedly instructed then-attorney general William Barr to cause the United States to intervene and substitute itself as the defendant, the judge said. That challenge, continued by President Joe Biden’s Justice Department, still awaits an appeals ruling.

“Taken together, these actions demonstrate that defendant’s litigation tactics have had a dilatory effect and, indeed, strongly suggest that he is acting out of a strong desire to delay any opportunity plaintiff may have to present her case against him,” the judge said.

The judge noted that Ms Carroll is 78 years old and the only direct witness to the alleged rape besides Mr Trump, saying “the relevance of these facts is obvious”.