HARRISBURG (WSKG) – A portion of the state Senate’s latest, tax-heavy plan to balance the commonwealth’s budget is likely to prompt some legal entanglement. Senators’ proposal to expand how the commonwealth’s sales tax is applied to online transactions is modeled on similar attempts by other states. Those states are already facing lawsuits. If the measure passes the House and governor, it would require online marketplaces–like Amazon–to charge sales tax on items they sell via third-party vendors. The move is expected to net more than $40 million annually.