WASHINGTON — Undeterred by dismissals and admonitions from judges, President Donald Trump’s campaign continued with its unprecedented efforts to overturn the results of the Nov 3. election Sunday, saying it had filed a new petition with the Supreme Court.The petition seeks to reverse a trio of Pennsylvania Supreme Court cases having to do with mail-in ballots and asks the court to the reject voters’ will and allow the Pennsylvania General Assembly to pick its own slate of electors.While the prospect of …