LEWISTON, Maine — At a news conference in his hometown Thursday evening in Lewiston, Rep. Jared Golden, a Democrat who had enjoyed an A+ rating from gun rights advocates, said he regretted his past opposition to an assault weapons ban and said he would now support a ban. Keeping up with politics is easy with The 5-Minute Fix Newsletter, in your inbox weekdays. At least 18 people were killed and 13 injured Wednesday night in deadly shootings in Maine. Skip to end of carousel Maine shootings (Angela Weiss/AFP/Getty Images) The manhunt for suspect Robert Card is ongoing after at least...