Although they do appear to "coordinate" quite effectively. e.g. https://www.huffingtonpost.co.uk/entry/super-pac-coordination_us_56463f85e4b045bf3def0273 https

Although they do appear to "coordinate" quite effectively. e.g. https://www.huffingtonpost.co.uk/entry/super-pac-coordination_us_56463f85e4b045bf3def0273 https://www.huffingtonpost.co.uk/entry/super-pac-coordinatio...