Justice Ruth Bader Ginsburg, gym bunny. (TIM SLOAN/AFP/GETTY IMAGES)

Here’s what the Loop is reading today:

Strong arms of the law — Justice Ruth Bader Ginsburg might be little, but she sure is tough. the Supreme Court Justice can do 20 pushups, according to this fascinating story about her trainer (who also works with Justice Elena Kagan).

Appalachian-trail-hiking former South Carolina governor Mark Sanford’s congressional bid took a big step forward yesterday.

In case you don’t have enough brackets in your life right about now, our friends at the Fix have a 2016 presidential one.