Argentina's chamber of deputies voted early Wednesday to approve a repayment deal with more holdout creditors, as the nation seeks to finally close the door on 15 years of litigation over its defaulted bonds.

The vote in Argentina's lower chamber of Congress, by 165 to 86, came after some 20 hours of debate, marking a first legislative triumph for the young administration of President Mauricio Macri. 

The bill now goes to the Senate where it likely faces stiffer opposition, political observers said.