What you need to know on Wall Street today

Welcome to Finance Insider, Business Insider's summary of the top stories of the past 24 hours. Sign up here to get the best of Business Insider delivered direct to your inbox. Congress passed the final version of the Republican tax bill on Wednesday, capping off a furious seven-week push to bring about the most sweeping changes to the US tax code in decades. Here's what you need to know: Companies are rushing to announce special bonuses and pay hikes after the GOP tax plan AT&T is...