WASHINGTON — Facing calls to step aside in a major upcoming case involving climate change, conservative Justice Samuel Alito is pushing back, with a Supreme Court spokeswoman saying he has no conflict that would require recusal. “Justice Alito does not have a financial interest in any party” involved in the case, the court spokeswoman said in a statement provided to NBC News. Alito was advised by the court’s legal counsel that “his recusal is not required,” she added. A group of left-leaning