The American Gaming Association spent $1.7 million to lobby Congress on Internet gambling issues last year.

The trade group, which opposes legislative proposals that would preempt state authority to regulate gambling, spent $800,000 on lobbying in the second half of the year, according to a disclosure form posted online last week by the Senate's public records office.

The American Gaming Association supports legislation that would fund a federal study on the impact of Internet gambling. The group has remained neutral on a law passed by Congress in late 2006 that attempts to crack down on Internet gambling by banning the use of credit cards to pay for online bets.