Melania has to nudge him. Notice that there is no criticism of his patriotism, no one saying he hates America, no disrespecting our troops. Just a simple mistake. And he's allowed to make it, because... well you know why...
We all know it would've been a huge deal if this was Obama. Now tell me again how Obama was held to a lower standard, as some posters like to believe..
http://www.dailymail.co.uk/news/article-4419014/Melania-Trump-nudges-Donald-hand-heart.html