Vice President Biden painted a rosy picture of the outlook for U.S. businesses Tuesday, but said economic growth hinges in large part on immigration reform, now languishing in Congress.

“We need it badly from a purely – purely economic point of view,” Biden said during remarks to the National Association of Manufacturers. …

Biden said a key to the country’s solid economic footing is the “the ‘constant, unrelenting stream’ of immigrants that has come to the United States for generations.

“Not dribbling,” Biden explained. “Significant flows.”