President Donald Trump expressed Friday how proud he was of his grandchildren for their performance in honor of Chinese President Xi Jinping and Madame Peng Liyuan's official visit to the U.S. The president retweeted his daughter Ivanka Trump's tweet in which she had posted a video capturing her children, Arabella and Joseph Kushner's performance for the Chinese president and his wife. Trump's grandchildren, Arabella and her brother Joseph were seen singing a Chinese folk song "Jasmine" and reciting verses from the "Three-Character Classics" as well as Tang dynasty poems to the two presidents in the video, while Melania Trump, Ivanka...