Two Republican Senate leaders on Tuesday introduced a bill aimed at curbing "pay-to-play" practices that enable large campaign contributors to win state contracts.

The aim is to eliminate even the appearance of a conflict of interest, said Senate Majority Whip Jane Orie of McCandless, a sponsor.

"The citizens of Pennsylvania demand honest and transparent government," Orie said. "The bill will open processes which have taken place behind closed doors for too long."

Orie introduced the bill with Senate Majority Leader Dominic Pileggi of Delaware County.

A similar bill won Senate approval by a 50-0 margin last year but it died in the House.