Extras

    Video thumbnail: PBS NewsHour Artist M.C. Escher spent a lifetime distorting perspective

    PBS NewsHour

    Artist M.C. Escher spent a lifetime distorting perspective

    Artist M.C. Escher spent a lifetime distorting perspective

    Artist M.C. Escher spent a lifetime distorting perspective

    Video thumbnail: PBS NewsHour Week 3: As federal shutdown endures, so do political divides

    PBS NewsHour

    Week 3: As federal shutdown endures, so do political divides

    Week 3: As federal shutdown endures, so do political divides

    Week 3: As federal shutdown endures, so do political divides