1.
If a person or organization has the high ground in an argument or dispute, that person or organization has an advantage. ( JOURNALISM )
The President must seek to regain the high ground in the political debate...
N-SING : the N , oft the adj N
2.
If you say that someone has taken the moral high ground , you mean that they consider that their policies and actions are morally superior to the policies and actions of their rivals.
The Republicans took the moral high ground with the message that they were best equipped to manage the authority...
PHRASE : PHR after v