2 loops, 2 post types, 2 columns, 1 pagination for both!

<section class="latest_articles">

	<?php
	 	  // set up or arguments for our custom query
	 	  $paged = ( get_query_var('page') ) ? get_query_var('page') : 1;
	 	  $opinion_args = array(
	 	    'post_type' => 'opinions',
	 	    'posts_per_page' => 10,
	 	    'paged' => $paged
	 	  );
	 	  // create a new instance of WP_Query
	 	  $opinions_query = new WP_Query( $opinion_args );
	 	?>
<div class="latest_opinions post_column">
<h3 class="section_title">Opinions</h3>
<?php if ( $opinions_query->have_posts() ) : while ( $opinions_query->have_posts() ) : $opinions_query->the_post(); // run the loop ?>
	<?php get_template_part('partials/opinions-excerpt'); ?>
<?php endwhile; ?>
<?php wp_reset_postdata(); ?>
<?php else: ?>
	<article>
		<h1>Sorry...</h1>
		<p><?php _e('Sorry, no posts matched your criteria.'); ?></p>
	</article>
<?php endif; ?>

</div>

<!-- / end first loop -->
	<?php
	 	  // set up or arguments for our custom query
	 	  $paged = ( get_query_var('page') ) ? get_query_var('page') : 1;
	 	  $idea_args = array(
	 	    'post_type' => 'ideas',
	 	    'posts_per_page' => 10,
	 	    'paged' => $paged
	 	  );
	 	  // create a new instance of WP_Query
	 	  $ideas_query = new WP_Query( $idea_args );
	 	?>
<div class="latest_ideas post_column">
	<h3 class="section_title">Ideas</h3>
	<?php if ( $ideas_query->have_posts() ) : while ( $ideas_query->have_posts() ) : $ideas_query->the_post(); // run the loop ?>
		<?php get_template_part('partials/ideas-excerpt'); ?>
	<?php endwhile; ?>

<?php wp_reset_postdata(); ?>
<?php else: ?>
	<article>
		<h1>Sorry...</h1>
		<p><?php _e('Sorry, no posts matched your criteria.'); ?></p>
	</article>
<?php endif; ?>
</div>
<?php $max = max($ideas_query->max_num_pages,$opinions_query->max_num_pages);
if (function_exists('custom_pagination')) {
    custom_pagination($max,"",$paged);
}?>
</section>