Trump has made many false or misleading statements during his campaign and presidency. The statements have been documented by fact-checkers, and the media have widely described the phenomenon as unprecedented in American politics. Many of his comments and actions have been characterized as racially charged or racist. During his presidency, Trump ordered a travel ban on citizens from several Muslim-majority countries, citing security concerns; after legal challenges, the Supreme Court upheld the policy's third revision. In May 2011 he announced that he would not run.Trump's presidential ambitions were generally not taken seriously at the time.