GOP debate: Trump crudely jokes about hand size

<p>In an effort to unseat GOP front-runner Donald Trump, Marco Rubio has unleashed a volley of personal attacks out on the campaign trail recently.&nbsp;</p><p>&quot;I&#39;ll admit he&#39;s taller than me. He&#39;s like 6&#39;2&quot;, which is why I don&#39;t understand why his hands are the size of someone who&#39;s 5&#39;2&quot;. And you know what they say about men with small hands: You can&#39;t trust them,&quot;&nbsp;<a href="http://www.cbsnews.com/news/marco-rubio-goes-after-donald-trumps-small-hands/" target="_blank">Rubio joked</a>&nbsp;at a rally.</p><p>But Rubio said at&nbsp;<a href="http://www.foxnews.com/live-coverage/fox-news-gop-debate" target="_blank">the debate</a>&nbsp;he&#39;d prefer to focus on political issues:</p><p>&quot;I would much prefer to have a policy debate. I hope that&#39;s what we&#39;ll have here tonight.&quot;&nbsp;</p><p>That didn&#39;t last long. After some back-and-forth with the billionaire, Rubio started mocking Trump for some of his past failed business ventures.</p><p>&quot;You&#39;ve bankrupted four companies. Have you ever heard of Trump Steaks? Have you ever heard of Trump Vodka?&quot; Rubio asked.</p><p>Then it just got weird when Rubio and Trump made up insulting nicknames for each other while talking about economic policy.</p><p>&quot;Dont worry about it, Little Marco, I will,&quot; Trump said.&nbsp;</p><p>&quot;All right, let&#39;s hear it, Big Don, Big Donald,&quot; Rubio responded.</p><p>So much for a policy debate.</p><p><i>This video includes clips from&nbsp;</i><i><a href="http://www.cbsnews.com/news/marco-rubio-goes-after-donald-trumps-small-hands/" target="_blank">CBS</a></i><i>&nbsp;and&nbsp;</i><i><a href="http://www.foxnews.com/live-coverage/fox-news-gop-debate" target="_blank">Fox News</a></i><i>&nbsp;and images from Getty Images.</i></p>