Second vote on Pere Aragonès' presidential bid, also primed to fail, now underway: live updates
May 26 deadline to elect a president or face snap election approaches
Junts per Catalunya will prevent his hopes again after announcing they will not change their stance and will abstain.
Both current coalition partners have been negotiating ever since the last election, held in February, but the only major outcome so far was granting Junts' Laura Borràs the post of parliament speaker.
Her election as Catalonia's second authority seemed to pave the way for a deal on a shared cabinet, but so far the final deal has not yet been reached.
Follow the latest developments live