Two Democrats who want to unseat Mayor Bloomberg have debated for the last time before Tuesday's primary election. Both candidates agreed that the city should take greater control over the MTA, but differed on how to do that. City Councilman Tony Avella suggested scrapping the 2nd Avenue subway project:

"We could institute a light rail system which would save the transportation needs of that community at one tenth the cost, and use all of that money to fund other transportation systems."

But City Comptroller Bill Thompson doesn't like that idea.

"The 2nd Avenue subway is something that people have waited for for decades. So no, I'm not in favor of stopping the 2nd Avenue subway and if anything I've talked about a full-built 2nd Avenue subway."

Listen to the debate: