I once played an online campaign where each player started as the leader of a party a few weeks before elections for the congress of a fictional European principality, this allowed us to have parties that advocated for Republicanism or to mantain the Prince as the Chief of State. I personally went with a moderate Libertarian party and I was managing to get some attention from the media. Sadly, it went downhill when some guy decided that he wanted to create a nazi party and the admins allowed it.