<div id="wp-content-editor-tools" class="wp-editor-tools hide-if-no-js">
    <a id="content-html" class="wp-switch-editor switch-html" onclick="switchEditors.switchto(this);">Text</a>
    <a id="content-tmce" class="wp-switch-editor switch-tmce" onclick="switchEditors.switchto(this);">Visual</a>

function richedit_wp_cloudfront () {
   add_filter('user_can_richedit','__return_true');
}

add_action( 'init', 'richedit_wp_cloudfront', 9 );