They often have a more or less official tie to particular schools.
Harvard severed all official ties with the clubs over this issue two years ago.
Though Shaw no longer had any official tie to the chorus, he continued to follow its fortunes.
The newspaper has no official ties with the Navy.
However, the video has no official ties to the Obama campaign.
At the time the story takes place, Casey has no official tie to the espionage establishment he was eventually to head.
Even if he did neglect to wear his official tie to the bid presentation.
But there are no official ties between the two companies.
By 1986 official ties had been restored, although relations remained cool.
An outside organization with no official ties to the party or to federal officials is a tougher sell.