Registered voters who watched Tuesday’s debate between vice presidential nominees Tim Walz and JD Vance were closely divided over which candidate did the better job, according to a CNN instant poll of debate watchers conducted by SSRS,

However, two flash polls showed the Republican challenger Vance winning by a slim margin in the vice-presidential debate.

Immigration is a central issue in this election, and polls have shown a majority of voters want to see immigration levels reduced.