Open primaries will lead to an increase in disputes internal to political parties  Primary elections can be extremely damaging to parties as it engenders cleaves and splits which damage chances of election. Election campaigns between candidates from the same party can become feverish, particularly if the contest is close (See the Democratic Presidential Primary in 2008).  This can be damaging as parties are made to spend their time focussing their energies on themselves instead of the opposition only to create an image of a divided party that alienates voters who prefer parties who can convey a coherent message about what they can provide for the future.  Primaries obscure what a party is about, changing the focus from being about policy and the message of the party to the candidate with personal attributes such as image being of importance. This makes politics much more superficial than it already is.