Well, we can look at the results of the past elections they were involved with and form an opinion off that.
16878 people, or 22.9% of the people in District 8 in Massachusetts voted for Brianna Wu.
https://ballotpedia.org/Brianna_Wu
In Carl's native South West England, UKIP, the party he was affiliated with, only managed to get a measly 3.22% of the vote and lost both of their seats in that region.
https://www.mirror.co.uk/news/politics/european-election-results-full-2019-16204234. This isn't even mentioning that Sargon doubling down on the whole rape comments gave the party such bad negative publicity that the party will probably never recover.
If were going off past results, Wu would win. Sargon's to arrogant take back any dumb comments he might have made. Bri would at least go through the motions and make an apology for any dumb comments she made (unless it's about moon rocks.).