A Philadelphia judge said he will rule Monday on the Green Party-backed petition for a statewide Pennsylvania recount, but signaled that the clock may be running out because the state must certify its election results for the Electoral College vote. U.S. District Judge Paul S. Diamond announced his plans after a Friday afternoon hearing at which supporters of Green Party nominee Jill Stein continued their bid for the review, citing potential security vulnerabilities in electronic voting machines statewide. Diamond, however, seemed most concerned with the limited time Stein’s lawyers had left him to act, by waiting nearly a month after the election to file their lawsuit. Any court-ordered delay in meeting the Tuesday certification deadline could put Pennsylvania’s electoral votes in jeopardy when the Electoral College convenes Dec. 19.