It matters not whether politics or religion, business or family, left or right wing, this statement will always remain true:
Matthew 12:25 And Jesus knew their thoughts, and said unto them, Every kingdom divided against itself is brought to desolation; and every city or house divided against itself shall not stand:
And Christ is asking every honest Christian today:
1 Corinthian 1:13 Is Christ divided? was Paul crucified for you? or were ye baptized in the name of Paul?