Massachusetts Rep. Jay Livingstone, and Regina Hufnagel, a former federal corrections officer, joined the Campaign to Regulate Marijuana Like Alcohol at a news conference Tuesday in front of the State House to kick off the signature drive in support of a proposed ballot initiative to end marijuana prohibition in Massachusetts. Sen. Will Brownsberger and Rep. David Rogers were among the first to sign the petition and offered statements in support of the initiative. The campaign must collect the signatures…