Primaries Live Updates: Wisconsin, South Carolina and Minnesota Elections Pose Test for Progressives and Trump The New York TimesWisconsin's Democratic showdown between Francesca Hong and David Crowley and more races to watch today CBS NewsThe Evening: Primary Voters Go to the Polls The New York TimesElections live updates: GOP race for Lindsey Graham's South Carolina Senate seat among today's key primaries NBC News
Twenty-three states have laws banning betting on elections, according to Pew Research. Not every state is sure these rules apply to prediction market trades.
