"They sought to challenge me," he said in his veto message Friday.
"The legislation before me is therefore unnecessary," the mayor wrote in the veto message.
The governor said in his veto message that the proposed law would have spawned lawsuits.
"However, the mayor's veto message made it clear that he did not question the Council's authority to pass this legislation."
Presidential veto messages are an example of an "executive communication."
"It is hard for me to imagine a bill whose purpose I could find more compelling," he wrote in his veto message.
"It was a veto message in search of a rationale," he said.
And it is mostly written already - largely in veto messages.
Mr. Bruno said he still had to review the governor's veto message.
An example of executive communication is a presidential veto message.