Competitive strategies of U.S. Presidential candidates in election campaigns

The structure of the Electoral College based U.S. Presidential elections system suggests a certain approach to choosing campaign strategies by U.S. Presidential candidates, and problems associated with finding competitive strategies of the candidates are considered. Most of the problems are formulated as discrete mathematical programming ones or as those with mixed variables, whereas some of the problems are formulated as game ones. Approaches to solving all the considered problems with the use of both widely available and experimental software are proposed.