I found the answer. This works GREAT!
https://www.mkbergman.com/?p=275
You just need to reformat the text when you copy and paste it into a text editor. The quotations marks are not HTML formatted.
Here is an example of the WYSIWYG that I use.
<?php
/*
Plugin Name: Advanced WYSIWYG Editor
Plugin URI: https://www.labnotes.org/
Description: Adds more styling options to the WYSIWYG post editor, updated for multi-line buttons.
Version: 0.3
Author: Assaf Arkin
Author URI: https://labnotes.org/
License: Creative Commons Attribution-ShareAlike
Tags: wordpress tinymce
*/
if (isset($wp_version)) {
add_filter("mce_buttons", "extended_editor_mce_buttons", 0);
add_filter("mce_buttons_2", "extended_editor_mce_buttons_2", 0);
}
function extended_editor_mce_buttons($buttons) {
return array(
"undo", "redo", "separator",
"bold", "italic", "underline", "strikethrough", "separator",
"bullist", "separator",
"charmap", "separator", "link", "unlink", "anchor", "separator",
"code", "formatselect", "separator", "separator", "search", "replace", "separator", "wphelp");
}
function extended_editor_mce_buttons_2($buttons) {
// the second toolbar line
return array();
}
?>