Sen. JD Vance is trailing behind Gov. Tim Walz in favorability ratings as the pair push toward Election Day, according to a new poll from USA Today and Suffolk University.A survey conducted after the Democratic National Convention in Chicago found that 36% of likely voters have a favorable view of Vance, while 48% approve of Walz. Former President Trump’s running mate fared similarly among independents, where 47% said they had an unfavorable view of Vance, but just 36% said they had an unfavorable view of Walz, who is running alongside Vice President Kamala Harris.USA Today and Suffolk University surveyed 1,000 likely voters from August 25–28 over cellphone and landlines. The poll adv …