Lady Grahamnastys phone is paid for by you, the taxpayer.
Its public property, so the number is public property.
Bathrooms in government buildings are public property, too, but I doubt if Trump would invite anyone to join him there.
Graham, however.........
Seriously, Trump has one job, get elected.
Without getting elected, nothing happens. Elections have consequences.
This is not a time to play gotcha.
Everything that helps win elections, in the eyes of the WHOLE OR LARGE MAJORITY OF THE ELECTORATE, is good.
Everything else is wasted time and space.
The phone number deal took McCain off th news and didn’t lose him any votes.