Heidi Schreck on bringing the ‘Constitution’ to Broadway

For the past few years, Heidi Schreck has been sharing personal stories about her family, as seen through the lens of the U.S. Constitution, on stages across New York City. Her play, “What the Constitution Means to Me,” was a critical and popular hit as it traveled from Clubbed Thumb, with a stop at Berkeley Rep, and then to New York Theatre Workshop and Greenwich House Theater. And yet, when the opportunity for Broadway arose, Schreck, who wrote and stars in “Constitution,” was in a state of disbelief. “I might have laughed,” Schreck said. “I think I thought it was…