Last year when President Trump visited Mount Vernon, the plantation home of the country’s first president, he remarked that the founding father had missed a golden opportunity.

“If he was smart, he would’ve put his name on it,” Mr. Trump said, according to an account in Politico. “You’ve got to put your name on stuff or no one remembers you.”

If the president wants to be remembered for something that would help make the country great again, how about the proposed rail tunnel under the Hudson River, one of the most important and urgently needed transportation infrastructure projects in the country?

The project includes numerous regional rail upgrades, including the construction of a new tunnel and the refurbishment of the existing tunnel. That tunnel, opened in 1910, carries more than 800,000 passenger trips per day between New Jersey and New York.