Argentina's new government begins negotiations in New York with groups that sued the country for more than $1 billion after the country defaulted on its debt in 2001. President Mauricio Macri took office in December and announced his intention to reach a settlement. The investor groups are known as "holdouts" because they refused to participate in Argentina's debt restructuring deals that 92 percent of investors accepted. US courts ruled Argentina could not pay the restructured debt holders unless it paid the holdout funds in full. Argentina refused and defaulted again in July 2014.