In the late 1990s the Party took part in the 'Alianza', the alliance principally between the UCR and FrePaSo which took Fernando de la Rúa to the presidency in 1999.

In 2007, there was an acrimonious split in the PRS, with Gómez Diez losing the leadership by 48% to 52% to Andrés Zottos, then a national deputy.

Zottos and his supporters favoured the former position and entered into formal pacts with Kirchner's Front for Victory (FPV).

[1] Zottos stood as the running mate to the FPV's Juan Manuel Urtubey in the contest for the governorship and was duly elected vice governor in 2007.

Gómez Díez helped set up a rival party, the Salta Proposition, but was largely wiped out electorally.