By Dan Weil The U.S. keeps taking on debt like a college kid with their first credit card. A new study shows something about that which may shock you. U.S. government debt has exploded from $370 billion to $31 trillion since 1970, with our leaders unwilling to raise taxes to match spending increases. It hasn’t mattered which party is in the White House: both have found it difficult to lift taxes but easy to boost spending. The presidents during the 1970-2022 period include: · Republican Richard Nixon (1970-74), · Republican Gerald Ford (1974-77), · Democrat Jimmy Carter (1977-1981), · Republic…