Since narrowly losing Minnesota in 2016, Trump has emphasized the state in hopes that a victory this year could offset losses in other states.
David McIntosh, president of the conservative Club for Growth, which has produced anti-Biden ads, said Minnesota may help the Trump campaign build momentum.
In 2016, Trump won that district, which includes the Democratic city of Duluth, by 15 percentage points.
Duluth Mayor Emily Larson said the Trump campaign has far outpaced Biden in local yard signs — which indicates enthusiasm but may not ultimately affect the outcome.
"One of the things the Trump campaign has been very good about is visibility in Duluth, but also in areas around Duluth,” Larson said.