"Mariano Rajoy will not resign," the secretary-general of the People's Party (PP), Maria Dolores de Cospedal, said in a press conference on the sidelines of a discussion in parliament ahead of the vote.
Meanwhile, the Basque Nationalist Party announced Thursday that said it would support a motion of no-confidence against Spanish Prime Minister Mariano Rajoy, paving the way for Rajoy to be removed from office.
"Our vote against [the no-confidence motion] will not create more stability [in Spain]. We will act more responsibly by voting in favor of [the motion]," PNV party spokesman Aitor Esteban said in an address to Spain's parliament.
Spain’s prime minister, Mariano Rajoy, got into hot water after a motion was filed by the leader of the Spanish Socialist Workers' Party (PSOE), Pedro Sánchez. Previously, the Basque political party, as well as pro-independence Catalan parties, have supported the no-confidence vote brought over the corruption case.
READ MORE: Spanish PM Urges Catalan Authorities to Form 'Viable' Government, Obey Law
The PSOE leader needs to receive a majority of 176 votes to take over as Spain's new prime minister. According to preliminary surveys, he currently has 175 votes – just one short of what he needs to have an absolute majority.
Responding to the accusations against him, Rajoy rejected the political proceedings as a plot by Sánchez and his party to undemocratically seize power.
READ MORE: Leader of Spanish Popular Party Rajoy Agrees to Stand as Candidate for PM