Analyze the sentiment expressed in the tweet. Is it positive, negative, or neutral? Explain the sentiment in relation to the stock mentioned.
TWEET: "Newly updated list of 30 best digital marketing campaigns! Including brands like @Zappos, @AmericanExpress, @lyft,… https://t.co/jnS9TQyDkY

" STOCK: American Express DATE: 11/09/2018
Sentiment: (Provide sentiment here)
Explanation: The tweet sentiment is related to the stock mentioned, and it's important to interpret the context. The LSTM polarity score is 1 and the TextBlob polarity score is 0.3787878787878787.