Tracking Voting Irregularities Across the U.S.

Here’s the latest news on election integrity from Washington, Silicon Valley and America’s more than 170,000 polling places as U.S. voters decide whether the Republican Party will retain control of Congress:

Facebook Inc. says the accounts it deleted Monday, after a tip from U.S. authorities, may have been related to Russia’s Internet Research Agency, which was accused in a federal indictment in February of trying to interfere in the 2016 election.