 In these days of uncertainty at the White House, Vice President Kamala Harris is sticking close to President Biden physically and politically, determined not to let anyone say that she has been anything other than completely loyal. But as a result, it means the person who may have to step up if he steps down cannot be seen doing anything to prepare for the challenge of a lifetime. With Mr. Biden's future on the line, perhaps no one is in a more delicate position than Ms. Harris. She's in an awkward position, said Reverend Al Sharpton. But the job of vice president is awkward. So she was recently asked about.