Kate Garraway has criticised Donald Trump for his hospital drive-by.
The US president, who is being treated for coronavirus, drove past his supporters accompanied by masked secret service agents in a "surprise visit".
Garraway's husband Derek Draper, 53, has been in hospital since he was admitted with Covid-19 in March.
"It's just extraordinary, it's bewildering," Good Morning Britain host Garraway said on the ITV show.
She said that her children are not allowed to visit their father in hospital, even though he no longer has the virus.
"And there are children who have died, with their mums and dads not being allowed to see them, so why does he think it's more important for him to get into that car?
"If he showed that he was respecting the people around him and respecting the isolation that would have been a heroic message and that would have absolutely benefited the country," Garraway said.
The TV host added: "It makes you think he still doesn't know (about Covid)... He's having all sorts of treatments which people who got sick in March, April, May, June didn't have access to.
"So he's lucky that he's built on the learnings of people like Derek."
Draper still remains seriously ill in an induced coma.
In a video posted before the car journey, the US president said he had "learned a lot about Covid.
"I learned it by really going to school.
"This is the real school.
"This isn't the 'let's read the books' school.
"And I get it, and I understand it.
"And it's a very interesting thing," he said.