This is CNBC's Morning Squawk newsletter. Subscribe here to receive future editions in your inbox. Happy Monday. My half marathon in Brooklyn over the weekend ended on Coney Island, and all the signage for hot dogs reminded me of a not-so-fun fact: Frankfurters are over 10% costlier than a year ago. Stock futures are lower this morning. Stocks are coming off a mixed week. Here are five key things investors need to know to start the trading day: President Donald Trump said on social media

Tag-uri: Donald Trump