In the election of 1856 Millard Fillmore was in known nothing candidate, and receive 21% of the popular vote what conclusion could be drawn from this fact

One conclusion that could be drawn from the fact that Millard Fillmore received 21% of the popular vote in the 1856 election is that there was a significant portion of the electorate that supported or aligned with his political views or candidacy. Despite being labeled as a "known nothing" candidate (referring to the American Party, also known as the Know-Nothing Party, which was anti-immigrant and secretive), Fillmore was able to garner a considerable level of support. This suggests that there was a sizeable group of voters who either shared the party's principles or saw Fillmore as a viable option for leadership. Additionally, it underscores the fact that elections can have multiple candidates with varied levels of support, and even individuals or parties perceived as having limited chances can still attract a noteworthy portion of the vote.