In 1964 , after being rejected as Lyndon B. Johnson 's running mate , Robert F. Kennedy , a Massachusetts native -LRB- he once lived in Riverdale in the Bronx -RRB- who was then a resident of Virginia , declared his candidacy for the Senate from New York and won -LRB- without resorting to his wife 's facetious campaign slogan : '' There is only so much you can do for Massachusetts . '' -RRB-