The Latest on the debate on impeachment of Brazilian president Dilma Rousseff (all times local):

1:00 a.m.

A rancorous Senate debate on the fate of President Dilma Rousseff has dragged into a new day Thursday, with her critics arguing that she caused deep damage to Latin America's largest nation while supporters are calling the effort to impeach her a coup d'etat.

The Senate's march toward a historic vote on impeaching Rousseff began Wednesday morning. The debate droned on through the day and into the wee hours of Thursday, with the vote possibly coming sometime around dawn.

Senate President Renan Calheiros said at one point: "I'm asking for everybody's patience because we need to see this through to the end."