Bill Clark/CQ-Roll Call, Inc via Getty Images GOP Texas Rep. Tony Gonzales is headed to a runoff fight against his primary challenger Brandon Herrera as he faces mounting calls to resign from Republican colleagues for having an affair with his ex-staffer, who died by suicide last year. The congressman was running for reelection in the competitive 23rd congressional district and refused to exit the race despite bombshell reports that the married father of six had cheated and sexually harassed his former staffer. Gonzales remained defiant Tuesday night in the face of a runoff on May 26, writing “Thank you President Trump and all those #TX23 constituents that support our campaign. Onward to a victorious May." Read more at The Daily Beast.