President Obama explained to a group of supporters in Ohio this afternoon that more government investments in infrastructure would help the economy grow again. Pointing out that if government continued to invest in roads and bridges, it would put more money in people’s pockets to spend.

“That’s how we grow our economy.” Obama said, “If we’re investing in roads and bridges, putting some hard hats back to work, getting our steel workers back to work, they got some more money to spend, maybe they buy a new computer, maybe they decide to take a little vacation.”

“And all that money circulates in the economy and it makes us all grow,” Obama added.

As Conn Carroll noted earlier, less than 2 percent of all federal spending went to “ground transportation” in 2012.