Ohio Democratic Sen. Sherrod Brown is facing criticism over his stance on illegal immigration and support for policies that benefit undocumented immigrants, according to a new multimillion-dollar ad campaign. The ad, from One Nation, a group tied to Senate Minority Leader Mitch McConnell, highlights Brown’s votes against measures to prevent illegal immigrants from accessing taxpayer-funded benefits and in favor of Biden’s American Rescue Plan, which provided COVID-19 relief funds to undocumented residents. Brown’s race is considered one of the most competitive in the country, with border security emerging as a top issue for voters. As President Biden faces low approval ratings, Brown, among other vulnerable Democrats, is predicted to distance himself from the president.