A swing-district Democrat disparaged Trump’s landmark overtime tax break despite his national firefighters union’s support, prompting his GOP opponent to accuse him of a “flip flop.” Nazareth, Pennsylvania’s Bob Brooks — running against Rep. Ryan Mackenzie, R-Pa., in a toss-up seat — is the president of the commonwealth’s firefighters union, setting up an apparent discrepancy with the national council, though the Democrat’s campaign says his concerns about the...