WASHINGTON — President Donald Trump has interviewed four prospective Supreme Court justices and had plans to meet with a few more as his White House aggressively mobilizes to select a replacement for retiring Justice Anthony Kennedy.

Eager to build suspense, Trump wouldn’t divulge whom he’s talking to in advance of his big announcement, set for July 9. But he promised that “they are outstanding people. They are really incredible people in so many different ways, academically and in every other way. I had a very, very interesting morning.”

Spokeswoman Sarah Huckabee Sanders said Trump met with four people for 45 minutes each Monday and will continue meetings through the rest of the week.

The interviews were with federal appeals judges Raymond Kethledge, Amul Thapar, Brett Kavanaugh and Amy Coney Barrett, said a person with knowledge of the meetings who was not authorized to speak publicly about them. The Washington Post first reported the identities of the candidates Trump spoke with.

The president spent the weekend at his Bedminster golf club, consulting with advisers, including White House counsel Don McGahn, as he considers his options to fill the vacancy with a justice who has the potential to be part of precedent-shattering court decisions on abortion, health care, gay marriage and other issues.