evidence: President Donald Trump’s campaign has filed suit against Philadelphia, arguing that its policy of barring poll watchers from newly opened satellite election offices violates Pennsylvania law. "The Philadelphia County Board of Elections denied, and continues to deny, the campaign its statutory right to have watchers observe the voting process," Linda Kerns, a lawyer representing the Trump campaign, wrote in a letter to the city’s three commissioners. [...] One of the incidents Trump raised as evidence of fraud happened just hours before the debate, when a woman who said she was a poll watcher for Trump’s campaign was blocked by city officials from entering a West Philadelphia satellite election office.