To nominate or be nominated suggests calling or being called for a special task often of a spiritual nature. When in dreams we are nominated by someone we perhaps should look at the level of commitment we have to our various tasks. When we are nominating someone else, it may be that we do not feel up to a particular emotional responsibility. From a purely mundane perspective a nomination is quite literally a naming, so a dream where this occurs may have a great deal to do with who we think we are. You might also like to consult the entry for Vote for further clarification.