Infighting
1)When you and/or someone else Criticize a friend or a Political Party, or a News organization that
lean towards your political affiliation, but don't agree on specifics and practicalities that fit your niche of that political affiliation.
In other
words, you have the same broad worldview of how things should be but you disagree on the specifics.
2)
One might blame another for "shooting in the tent" when he criticizes and chastises members of his own political party while the opponents of said party can gain power on the back of "Infighting".
The metaphor is for a guy that has a guy in a tent and has beef with
one person and tries to shoot him while endangering his
friends as well.
"Man, you really have to stop Shooting in the tent. we're all on the same
side after all."
"You don't have to agree
100% and still work for the bigger
issues.
But if you keep shooting in the tent you will bring all of us down!"