Original sentence: Although they have stated the determination to rule without a formal coalition, in certain issues they seek external support from other political parties, especially Republican Left of Catalonia (ERC) and People's Party (PPC)
Edited sentence: Although they have stated the determination to rule without a formal coalition, they are currently negotiating with minor political parties, especially Republican Left of Catalonia (ERC) and People's Party (PPC), to secure the election of the party's leader Artur Mas as the president of the Catalan government