Republicans have proposed that the state’s infrastructure needs can be paid for with bonding — borrowing the money now and paying for it over the years. The Republican bonding plan would guarantee $1 billion a year in revenue, they claim, and would slash bonding for other projects. The current statutory limit on bonding is $1.9 billion a year, and since 2012, an average of nearly $1.6 billion in bonds have been issued each year. The Republican plan would leave little for anything else.