The economy is growing. Democrats want to know who’s benefiting.

The United States economy grew by 2.2 percent in the fourth quarter last year, according to updated numbers released by the government on Thursday. Congressional Democrats are renewing their push to figure out if that growth is touching ordinary Americans.

Senate Minority Leader Chuck Schumer, Sen. Martin Heinrich (D-NM), and Joint Economic Committee Vice Chair Rep. Carolyn Maloney (D-NY) on Thursday sent a letter to Bureau of Economic Analysis Director Brian Moyer asking him to provide a breakdown of economic growth for different income groups. This is the continuation of...