alberto ángel fernández (born 2 april 1959) is an argentine lawyer and politician. fernández has been the 57th president of argentina since 2019. he was the chief of the cabinet of ministers during néstor kirchner's presidency, and the early months of cristina fernández de kirchner's. his tenure as cabinet chief from 2003 to 2008 remains the longest since the post was created in 1994.