FILE - In a Oct. 24, 2008 file photo, former Massachusetts Gov. William Weld, a Republican, endorses Democrat Barack Obama for president at the Barack Obama campaign office in Salem, N.H. Former U.S. House Speaker John Boehner says he has had a change of heart on marijuana and will promote its nationwide legalization. The Ohio Republican has joined the advisory board of Acreage Holdings, a multistate cannabis company. The company also announced that former Massachusetts Gov. William Weld has joined its advisory board. (AP Photo/Cheryl Senter, File)