Comment on this story Remark The Hirshhorn Museum and Sculpture Backyard broke floor on its much-debated sculpture back garden renovation on Wednesday at a ceremony presided above by first girl Jill Biden, artists and museum leaders. Speaking to a group seated near operates by Henry Moore and Tony Cragg in the backyard garden on a cool tumble afternoon, the initially lady, refreshing off the midterm campaign trail, reflected on the electrical power of art in chaotic moments and praised the renovation for its goal of broadening the museum’s access. “This challenge will produce a location which will attract far more people today to the treasures within, where they are welcomed…