WASHINGTON — Senate Majority Leader Mitch McConnell thinks it’s dangerous for his party to challenge President-elect Joe Biden’s election triumph. But some Republicans are charging ahead anyway, and this time McConnell is facing dynamics he can’t fully control.Despite the Kentucky Republican’s opposition, 13 GOP senators have said they will join scores of their House colleagues Wednesday and object when Congress formally affirms Biden’s Electoral College victory. The effort, certain to fail, has been spurred by the soundly …