Trump disrupted the 2016 election through his use of Twitter, but has said he won't use the official @POTUS profile. Universal Information Services has analyzed how Obama used Twitter compared to Trump's use.

Every potential employer will ask you for references.  While a reference can confirm your employment at a company, you want a reference who will get you the job.  Someone who will confirm to your potential employer how great you are.  A reference should be able to speak to how valuable you were.  It's someone who you've worked with on a consistent basis and knew how you impacted the work being done.  It's very important that you pick your references wisely.