The United States President Donald Trump has disclosed his intention to announce his nominee for a new Supreme Court judge on July 9, 2018.

He made this known while on board in the presidential aircraft where he stated that he had narrowed the choice down to "about five" candidates, including two women.

The vacancy arose when Justice Anthony Kennedy announced his retirement earlier this week.

It gives President Trump the opportunity to solidify a conservative majority on the top court.

His nominee will need to be confirmed by the Senate where the president';s Republican Party holds a narrow majority.

In other comments to reporters on Friday, Mr Trump: Speaking on a flight from Washington to New Jersey on Friday, President Trump said he would not ask Supreme Court candidates about their position on the landmark 1973 Roe v Wade decision which legalised abortion across the US.

During his campaign, Mr Trump promised to deliver "pro-life" judges to the Supreme Court - a prospect that has alarmed women';s rights groups.

"I';ve got it narrowed to about five [candidates]," he told reporters, adding: "I like them all."

Mr Trump said he planned to interview one or two of the candidates over the weekend while staying at his golf club in Bedminster.