For now, Clinton is not a candidate; she insists publicly that she has not made a decision about whether to run. But ahead of her expected campaign launch in April, Clinton has been on a hiring spree, assembling large political staffs in the four early-voting states, including Nevada.

People familiar with her campaign plans say she is committed to personal outreach and will not make the same mistakes as in her 2008 campaign, when she came across in Iowa in particular as aloof and presumptuous.

“Make no mistake, if she runs, she will present solutions to our toughest challenges, she will take nothing for granted, and she will fight for every vote,” said Clinton spokesman Nick Merrill.