WASHINGTON — Donald Trump Jr. has posted a message on Twitter likening Syrian refugees to a bowl of poisoned Skittles. Seeking to promote his father’s presidential campaign, the younger Trump posted a tweet featuring a bowl of the candy Skittles with a warning. “If I had a bowl of skittles and I told you just three would kill you, would you take a handful?” said the tweet on the verified @DonaldTrumpJr handle. This image says it all.