Todd Spangler NY Digital EditorPresident Trump’s permanent ban from Twitter helped eliminate clouds of misinformation pollution from social media networks, according to new research.From Jan. 9-15, misinformation about election fraud on social networks plummeted around 73%, from 2.5 million posts to 688,000, according to data from social-analytics firm Zignal Labs, as cited by a Washington Post report.That came after Twitter finally banned Trump on Jan.