NEW YORK (TheStreet) -- Treasury Secretary Jack Lew has unveiled his signature that will be placed on U.S. currency starting this fall. The former White House chief of staff who President Obama nominated to succeed Timothy Geithner, had been known for a rather loopy looking signature that didn't appear to resemble his name. The refurbished signature, which the U.S. Treasury ...

It's official: Treasury Secretary Jack Lew has undergone a transformation, at least when it comes to penmanship.

While Social Security and Medicare are meeting their commitments today, and will continue to do so in the years ahead, “these programs face long-term challenges,” Treasury Secretary Jack Lew said in a Friday media briefing.