(Providence, RI)--Rhode Island casino operator Twin River is making a new effort against a proposed state lottery contract extension for IGT.Twin River says it's submitting a competing contract bid with London-based Camelot Lottery Solutions, which recently took over the lottery gaming system from IGT in Illinois.The timing coincides with the first Senate Finance Committee hearing to review the IGT contract extension proposal, happening at the State House this evening.The House Finance Committee is also set to hear testimony on the proposed extension next week.