Since announcing his retirement last spring, House Speaker Paul Ryan has envisioned a successful close to his two decade career in the House and a chance, he said recently, to “run through the tape” upon his exit.

But his hope for an easy jaunt across the finish line may be blocked by obstacles — in the shapes of President Trump and conservative Republicans — who are insisting on money for a southern border wall that could greatly complicate efforts to fund the federal government on time. He also has to deal with Senate Democrats who could block legislation.