There's a number of processes taking place. One of them is the emergence of a new left-wing coalition - see Joseph Daher's interview with a Socialist Renewal activist elsewhere on Counterfire for more on this - but just as significant is the emergence of independent trade unions. The left will of course be strengthened if it has a strong relationship with these new efforts at union organisation, just as it needs (and, from what I can infer, has) a strong connection with popular committees.

Also, the new left coalition isn't purely concerned with electoral politics - indeed its immediate priorities aren't to do with elections, but rather strikes, demonstrations and wider organisation.