Etiquette experts say he also made a faux pas by clinking his glass against the royal's, though she smiled throughout the festivities.
The first lady wore a Dolce & Gabbana dress with navy trim and a matching hat to visit Buckingham Palace.
Astrologer Chris Love takes us through the astrology of the new royal baby, helping determine what we can expect from Prince Harry and Meghan's first born.
Some critics are urging the royal to take Trump "to the Tower."
Michelle Obama is still answering for the time she supposedly breached royalprotocol by hugging Queen Elizabeth at Buckingham Palace in 2009
Some eight months after palling around with Meghan Markle, the queen has taken Kate Middleton for a solo outing.
"What he’s achieved simply by being with the queen for all those years is absolutely remarkable and unprecedented," says historian Anna Whitelock
Twitter users had a meltdown Wednesday night, thinking the royal family's social media account may have fallen into the hands of hackers, with one fan commenting, "Is this a joke?"