On 17 January 2019, it was announced that Carmena and Íñigo Errejón, Podemos candidate for president of the Community of Madrid and one of Podemos' founders, had agreed to launch a joint platform to run at the 2019 Madrilenian regional election. Podemos leader Pablo Iglesias announced later that day that he no longer considered Errejón as the party's candidate in the region for placing himself "outside Podemos" by renouncing the party's trademark, and that Podemos and IU would contest the regional election on their own even if that meant competing against Más Madrid and, therefore, against Errejón. Podemos leaders also urged Errejón to resign his seat in the Congress of Deputies, considering his move as "deceitful" and "a betrayal" of the party. On 21 January, Errejón vacated his seat in the Congress, but still called for Podemos, IU and Equo to join the Más Madrid platform.