UPDATE: Nordstrom stock closed up slightly today, after taking a hit yesterday following President Trump s tweet.President Trump tweeted about Nordstrom dumping his daughter s brand today and the company is seeing an immediate, negative market reaction. Nordstrom and its outlet store, Nordstrom Rack, announced last week that they were dumping Ivanka s line of shoes and accessories because of poor sales and likely pressure from liberal boycotters who made Nordstrom a top target in their anti-Trump actions.Here is his tweet: My daughter Ivanka has been treated so unfairly by @Nordstrom. She is a great person   always pushing me to do the right thing! Terrible!  Donald J. Trump (@realDonaldTrump) February 8, 2017And here are a few tweets from women who are saying they re finished with Nordstrom: https://twitter.com/immigrant4trump/status/829529883671945216Conservatives protest w/ their wallets, Democrats protest by rioting, looting & wearing vagina outfits  Deplorable Mary E (@CarverCallie) February 9, 2017If Nordstrom's want to get involved in politics, then I will do my part as well. Nordstrom card in pieces now.  DrainTheSwamp (@zfamilymn) February 8, 2017And then there was this public service tweeter who actually offered Twitter users a phone number to call to cancel customer credit cards:# to call to Cancel Nordstrom credit card: 800.964.1800  Tweetheart  (@tweetheart2017) February 9, 2017While Trump s missive caused, as usual, a wave of outraged responses on Twitter, it also hit Nordstrom in the pocketbook. As soon as Trump Tweeted, shares of Nordstrom stock took a dive.This might be the last thing Nordstrom needs: its stock had remained steady most of 2016, but took a 14% hit in December on news that department stores had a rough holiday season.But the Seattle-based luxury retailer isn t alone in suffering the  Trump effect.  A number of companies, including Boeing, Carrier and even Amazon have suffered the same result after Donald Trump took to social media to complain about their business models or product prices.  Heat Street 