With the prospect of a “blue wave” in the November elections, Republicans and Democrats appeared to have escaped embarrassment Wednesday after primaries across eight states. President Donald Trump cast the night as a win for Republicans. “So much for the big Blue Wave, it may be a big Red Wave,” he tweeted Wednesday morning, hailing what he called “the Trump impact.” While some California contests remained too close to call, Republicans avoided disaster in the race for governor by nominating business executive John Cox to the November ballot. Lt. Gov. Gavin Newson, a Democrat, easily captured the top spot in...