Twitter and Trump on a collision course with the truth

Twitter, a service built around brevity and speed, is about to get a lot busier.

After seemingly ignoring every standard it had when it came to President Donald Trump’s most outrageous tweets, Tuesday night the company has posted its first fact check on a Trump claim that “There is NO WAY (ZERO!) that Mail-In Ballots will be anything less than substantially fraudulent. Mail boxes will be robbed, ballots will be forged & even illegally printed out & fraudulently signed.” He goes on to say the November election “will be rigged.”...