Amazon’s stock fell 5.2 percent on Monday amid President Donald Trump’s attacks on the company. Technology firms were hit the hardest among a broad Wall Street sell-off, with all three major indices finishing in the red. Over the weekend, Trump took to Twitter to lambast Amazon, accusing it of skirting taxes and taking advantage of the U.S. Postal Service. Facebook also slid 2.7 percent amid the ongoing controversy involving the Trump campaign’s data firm, Cambridge Analytica, which was able to harvest the Facebook data of millions of Americans.