Four states will hold primaries on Tuesday, May 8. WSJ's Gerald F. Seib previews the key races, and explains why West Virginia's Republican Senate primary has become the main event. Photo: GettyPresident Donald Trump inserted himself into Tuesday’s Republican Senate primary in West Virginia, urging voters to reject a scandal-scarred former coal executive whose apparent polling strength is stirring fears that he could cost the party a chance to pick up a seat from Democrats. In a tweet Monday, Mr. Trump said the former executive, Don Blankenship, “can’t win the General Election in your State....No Way! Remember Alabama.” He then urged voters to choose one of two other Republicans in the race, U.S. Rep. Evan Jenkins...

Source: Wall Street Journal May 07, 2018 19:45 UTC