Democratic Edge in Party Affiliation Up to Seven Points June 6, 2017 · Leave a Comment In an encouraging sign for the Democratic Party’s election prospects in 2018, its edge in party affiliation over the Republican Party has grown to seven percentage points, the largest it has been in over two years. CONT. Jeffrey M. Jones, Gallup Share:Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on Reddit (Opens in new window)Click to email a link to a friend (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to share on Tumblr (Opens in new window)Click to share on Pinterest (Opens in new window)MoreClick to print (Opens in new window)