In state after state that once called the president its favorite son, he is finding that his political advocacy is unwelcome.
It is possible the Republicans will win only Arizona on Tuesday, and that only because he is its favorite son.
Some critics, meanwhile, are still wary of openly criticizing a favorite son, though now at least willing to say I told you so.
A political figure nominated for the presidency by his or her state's delegation to the national nominating convention of a major party. Favorite sons are rarely serious candidates for the party's nomination. By nominating a favorite son, the delegation honors its nominee while delaying its commitment until the more serious contenders for the nomination can be sorted out.