Smith argued that by giving everyone freedom to produce and exchange goods as they pleased (free trade) and opening the markets up to domestic and foreign competition, people's natural self-interest would promote greater prosperity than with stringent government regulations.
Some struggles could be how people choose to promote others.. their promotion could flop causing not a lot of viewers to find an interest in voting for them. another struggle could be a bad reputation. if they have a bad reputation, viewers will find the candidate as a untrustful president.
Hope that helped!!
I believe it's asking you how many votes you need to get the majority. example: in a presidential election, more than 50% is the majority.