Job No. 1 in politics isn't about passing the most bills, appearing on the local TV stations, carving out and advancing an ideology, or even voting the right way (though all of these things matter). No, the most important job is first taking care of the people. Barbara Mikulski gets that, and her legacy leaves some mighty big shoes to fill. By showing a sincere regard for the people he serves, Chris Van Hollen is the only one in this race ready to step into them.