On November 4, 2016, the hacker “Guccifer 2.0,” a front for Russia’s military intelligence service, claimed in a blogpost that the Democrats were likely to use vulnerabilities to hack the presidential elections. On November 9, 2018, President Donald Trump started tweeting about the senatorial elections in Florida and Arizona. Without any evidence whatsoever, he said ...

Last Thursday, Rudy Giuliani, a Trump campaign lawyer, alleged a widespread voting conspiracy involving Venezuela, Cuba and China. Another lawyer, Sidney Powell, argued that Mr. Trump won in a landslide, the entire election in swing states should be overturned and the legislatures should make sure that the electors are selected for the president. The Republican ...