WASHINGTON — Cheered by jubilant crowds across the nation's capital, Pope Francis forged common cause Wednesday with President Barack Obama on climate change, immigration and inequality, as the popular pontiff signaled he would not sidestep issues that have deeply divided Americans. On his first full day in the United States, the pope also reached out to America's 450 bishops, many of whom have struggled to come to terms with his new social justice-minded direction for the Catholic Church. He gently prodded the bishops to forgo "harsh and divisive language," while commending their "courage" in the face of the church's sexual abuse scandal — rhetoric that angered victims he may meet with later in his trip.