If you really don’t care what Rob Port has to say, here’s a Greasemonkey script to hide his articles from appearing on the Grand Forks Herald website:
// ==UserScript==
// @name _Remove Port
// @include https://www.grandforksherald.com/*
// @require http://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js
// @grant GM_addStyle
// ==/UserScript==
//- The @grant directive is needed to restore the proper sandbox.
/*--- Use the jQuery contains selector to find content to remove.
Beware that not all whitespace is as it appears.
*/
var badDivs = $("article:contains('Port')");
badDivs.remove ();
//-- Or use badDivs.hide(); to just hide the content.
Taken almost entirely from https://stackoverflow.com/a/9169236/2152245.