Blog adding spans to paragraphs

Some paragrpahs in a blog posts are correctly formatted in the text editor when I write a post, but then <span. tags are being added all over the place in the browser. Ive tried copying the text from a lpain text file and it dtill does it.

<div class="hentry">
    <h1>
        <a href="<perch:blog id="postURL" type="hidden" />" rel="bookmark" class="entry-title">
            <perch:blog id="postTitle" type="text" label="Title" required="true" size="xl autowidth" order="1" />
        </a>
    </h1>
    <p class="entry-published date">
        <perch:blog id="postDateTime" type="date" label="Date" time="true" format="%d %B %Y" divider-before="Meta information" /> 
    </p>
    <perch:if exists="image">
        <div class="blog-image">
            <img src="<perch:blog id="image" type="image" width="450" height="450" crop="true" label="Image" order="4" />" alt="<perch:blog id="postTitle" />" />
        </div>
    </perch:if>
    <div class="description entry-content">
        <perch:blog id="postDescHTML" type="textarea" label="Post" order="2" editor="redactor" html="true" size="xxl autowidth" required="true" />
    </div>

    <!-- Social Media Buttons -->
    <div class="social-buttons-wrap">
        <div class="twitter-button">
            <a href="https://twitter.com/share" class="twitter-share-button" data-count="none">Tweet</a>
            <script>!function(d,s,id){var js,fjs=d.getElementsByTagName(s)[0],p=/^https:/.test(d.location)?'http':'https';if(!d.getElementById(id)){js=d.createElement(s);js.id=id;js.src=p+'://platform.twitter.com/widgets.js';fjs.parentNode.insertBefore(js,fjs);}}(document, 'script', 'twitter-wjs');</script>
        </div><!-- .twitter button -->

        <div class="linkedin-button">
            <script src="//platform.linkedin.com/in.js" type="text/javascript">
              lang: en_US
            </script>
            <script type="IN/Share"></script>
        </div><!-- .linkedin-button -->

    </div><!-- .social-buttons-wrap -->

</div>

<perch:blog id="excerpt" type="textarea" label="Excerpt" editor="markitup" textile="true" order="3" suppress="true" size="s" />
<perch:blog id="image" type="image" width="450" height="450" crop="false" suppress="true" />