Senators in Brazil have begun a second day of deliberations in the trial of President Dilma Rousseff.

Rousseff, in the middle of her second term, is accused of breaking fiscal rules in her management of the federal budget. She denies wrongdoing and argues that her enemies are carrying out a "coup d'etat."

Witnesses for Rousseff's defense are expected to testify Friday.

Several days of debate, including an address by Rousseff on Monday, will culminate in a vote on whether to permanently remove her from office.

The Senate voted in May to impeach and suspend her for up to 180 days while the trial could be prepared.

Vice President Michel Temer took over in May. If Rousseff is removed, Temer will serve the rest of her term through 2018.