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Zelf Political Report:
Harris-Walz rises to the top on TikTok; Trump-Vance falters
Welcome to the Zelf Political Report, where we share one-of-a-kind TikTok insights and analysis on current politics based on our platform’s proprietary technology. In this edition, we gathered insights from trends about the presidential race between Aug. 6, 2024 and Aug. 14, 2024.
Zelf Data and Insights
Kamala Harris experienced a surge in positive sentiment on TikTok after President Biden bowed out of the race, clearing the path for the vice president to rise to the top of the Democratic Party’s ticket. At the time, Harris had the highest Net Promoter Score (NPS) on the platform among all the major candidates (49%).
Our biggest question leading into this new report was whether Harris would maintain her momentum on TikTok. Here’s what we found:
Top Harris/Walz Video With Positive Sentiment
10M views
21.23% engagement rate 
Top Trump/Vance Video With Positive Sentiment
1.8M views
8.69% engagement rate
We also found a major contrast in how successfully the presidential candidates are using the platform for their own content:
On the VP front, there was also a substantial difference between the Republican and Democratic candidates:
On the issues, the subject “(un)fit to serve” was generating more reactions on TikTok than any other, with Trump receiving more negative sentiment (nearly 8 million engagements) on the platform than Harris (nearly 2 million engagements).
While the “(un)fit to serve” topic was the biggest drag on both Biden and Trump for much of the election cycle, Harris seems to be attracting positive sentiment around the same issue. She had a net score of +1.1 million engagements, compared to a net score of -6.7 million engagements for Donald Trump.
Methodology
Zelf conducted a comprehensive assessment of 39,299 TikTok videos from August 6, 2024 to August 14, 2024, that mentioned Vice President Kamala Harris, former President Donald Trump, as well as vice presidential picks J.D. Vance and Tim Walz. Zelf also tracked key political issues including immigration, inflation, and reproductive rights. 
The Zelf assessment monitored the number of videos, views, and engagements, as well as whether the videos were positive, neutral, or negative for any of the candidates or policies being measured.
A key metric that Zelf uses is the Net Promoter Score (NPS), which is an assessment of how positive or negative discourse is about an individual, issue, or topic within a given timeframe, weighted based on video engagement.
For an individual commercial post, Zelf accurately ascribes sentiment 97.5% of the time. Measuring political posts is more complex as sentiments are often far more nuanced with some posts expressing both positive and negative sentiments. For individual political posts, Zelf accurately ascribes sentiment 85-90% of the time. Measuring those posts at scale, Zelf's analysis offers the most accurate snapshot by far of political discourse on TikTok. As Zelf continues to analyze political content, it's already high overall accuracy will continue to increase.