 Complete the following phrase:  In early March 2019 Sánchez Mato announced his intention to run in the IU primaries to select its candidates to the April 2019 general election in the Madrid constituency within the Unidas Podemos coalition list. Four days later he dropped his candidacy, thinking in what was best for the project. Following the renouncement of Mauricio Valiente to led IU in the primary election of the Madrid En Pie coalition for the list to be presented at the 2019 Madrid municipal election, after the membership of United LeftMadrid IUMadrid decided in a referendum not to run in the Unidas Podemos coalition for the 