diff --git a/web/app/themes/mitlib-news/functions.php b/web/app/themes/mitlib-news/functions.php
index 56311023..333fecd2 100644
--- a/web/app/themes/mitlib-news/functions.php
+++ b/web/app/themes/mitlib-news/functions.php
@@ -115,6 +115,28 @@ function remove_parent_widgets() {
 }
 add_action( 'widgets_init', 'Mitlib\News\remove_parent_widgets', 11 );
 
+/**
+ * Expands the category display, for categories that are not Bibliotech issues,
+ * to include content from all post types (Spotlights and Bibliotech articles,
+ * in addition to Posts).
+ *
+ * @param object $request A request object.
+ */
+function expand_category_scope( $request ) {
+	$vars = $request->query_vars;
+	if ( is_category() && ! is_category( 'bibliotech' ) && ! array_key_exists( 'post_type', $vars ) ) :
+		$vars = array_merge(
+			$vars,
+			array(
+				'post_type' => 'any',
+			)
+		);
+		$request->query_vars = $vars;
+	endif;
+	return $request;
+}
+add_filter( 'pre_get_posts', 'Mitlib\News\expand_category_scope' );
+
 /**
  * ============================================================================
  * ============================================================================
diff --git a/web/app/themes/mitlib-news/lib/classes/nav-menu-dropdown.php b/web/app/themes/mitlib-news/lib/classes/nav-menu-dropdown.php
deleted file mode 100644
index e621419d..00000000
--- a/web/app/themes/mitlib-news/lib/classes/nav-menu-dropdown.php
+++ /dev/null
@@ -1,39 +0,0 @@
-<?php
-/**
- * Nav Menu Dropdown
- *
- * @package      BE_Genesis_Child
- * @since        1.0.0
- * @link         https://github.com/billerickson/BE-Genesis-Child
- * @author       Bill Erickson <bill@billerickson.net>
- * @copyright    Copyright (c) 2011, Bill Erickson
- * @license      http://opensource.org/licenses/gpl-2.0.php GNU Public License
- */
-
-class Walker_Nav_Menu_Dropdown extends Walker_Nav_Menu {
-	function start_lvl( &$output, $depth ) {
-		$indent = str_repeat( "\t", $depth ); // don't output children opening tag (`<ul>`)
-	}
-
-	function end_lvl( &$output, $depth ) {
-		$indent = str_repeat( "\t", $depth ); // don't output children closing tag
-	}
-
-	/**
-	 * Start the element output.
-	 *
-	 * @param  string $output Passed by reference. Used to append additional content.
-	 * @param  object $item   Menu item data object.
-	 * @param  int    $depth     Depth of menu item. May be used for padding.
-	 * @param  array  $args    Additional strings.
-	 * @return void
-	 */
-	function start_el( &$output, $item, $depth, $args ) {
-		$url = '#' !== $item->url ? $item->url : '';
-		$output .= '<option value="' . $url . '">' . $item->title;
-	}
-
-	function end_el( &$output, $item, $depth ) {
-		$output .= "</option>\n"; // replace closing </li> with the option tag
-	}
-}