Charles M. Blow: Democrats dare to believe

Democrats across the country are beginning to believe.They are daring to believe that the national nightmare could be coming to an end, that Donald Trump will not only not be reelected, but that Democrats could also flip the Senate.But, this is a hope, a possibility, that they are refusing to give voice to.They are still stung by the shock of 2016. They believed the polls that said Hillary Clinton would win. Their faith in all polling remains shaken.They tell themselves, “Take nothing for