As we mark the 82nd anniversary of D-Day and the Allied landings on the beaches of Northern France, there will be an especially poignant moment at the British Normandy Memorial.
I met Trump in Mar-A-Lago and asked about his first encounter with the late Queen. Their 2018 meeting meant to last for about 15 minutes, but it went on for the best part of an hour.
ROBERT HARDMAN: At 11am yesterday, Yona Maarek, 15, was checking her notes on the role of the monarch ahead of that afternoon's GCSE exam in citizenship.
'For most of my political career, I've been using a shotgun - blasting away just to raise awareness of an issue; to get people to vote on it. Winning seats was irrelevant,' shouts Nigel Farage.
Speaking to Palace Confidential co-hosts Richard Kay and Richard Eden, Hardman explained what he described as a pointed omission aimed at Prince Harry during the speech.
Suddenly, I find myself wondering if this is about to be a Zelensky moment. I am in the Oval Office to present President Donald Trump with a copy of my new biography, Elizabeth II.
ROBERT HARDMAN: We know that the avowedly royalist President Trump already regards the King as 'a great guy' and 'a fighter' - but his affection may now become even more pronounced.