WARSAW — Jordan Bardella is shopping for allies.  As he prepares for a potential run for the French presidency next year, the leader of the far-right National Rally used a trip to Poland this week to court nationalist and conservative partners to join him in trying to shape the EU to his liking.  “This visit is a key step in a series of European trips,” Bardella said during a press conference at the Polish parliament Thursday. He said he had had a “very fruitful” meeting with Polish President