Given the task definition and input, reply with output. Given a sentence and two mentions from the text (arguments), indicate a phrase (a verb or noun phrase) that describes the relationship between the provided arguments.

Sentence: 'In this regard , I pledge to do everything within my power to help Senator Barack Obama to become the next President of the United States of America and , perhaps needless to say , I plan to enthusiastically promote his national platform to enew America Promisetowards the ultimate goal of helping its many elements to become a reality for the citizens of the District of Columbia .', Argument/Subject 1: 'barack obama', Argument/Subject 2: 'unite state'
be president of