Charlie Gard is a British baby whose death was ordered by the British system of Socialized medicine and by the European Court of Human Rights over the appeals of the parents to seek treatment in the United States. The parents had raised the funds to seek treatment, but the European Socialist system insisted on death for the ill child instead.
The media has largely reported on President Trump's tweeted offer of support to the parents of Charlie Gard while dismissing it as a publicity stunt. Except that it actually reflects policy happening at the highest levels.
According to Helen Ferre, director of media affairs at the White House, "Upon learning of baby Charlie Gard's situation, President Trump has offered to help the family in this heartbreaking situation. Although the President himself has not spoken to the family, he does not want to pressure them in any way, members of the administration have spoken to the family in calls facilitated by the British government. The President is just trying to be helpful if at all possible."
That's a lot more than a Tweet. It means there have been high level contacts. It means that the British government is aware that this is more than a Tweet, it's policy. And the British government these days is generally interested in maintaining a positive relationship.