She was a member of the National Solidarity party, where she was the national secretary of organization from 2002 to 2011.
She was a candidate for Congress for the National Solidarity Alliance in the 2011 Peruvian general election. Although the alliance had representation in Congress, Yarrow was not elected.
In the 2002 municipal elections [es], she was elected councilor of the Metropolitan Municipality of Lima, by the National Unity Electoral Alliance (an alliance that included National Solidarity), for the municipal period 2003-2006.[2] She was re-elected in the 2006 elections [es] for the period 2007-2010.[3]
For the 2018 Lima municipal election, she was again elected councilor of the Municipality of Lima for Perú Patria Segura, where she was also running as deputy mayor under Renzo Reggiardo.[4][5]
For the 2021 Peruvian general election, Yarrow announced her candidacy for Congress with the Popular Renewal party, whose presidential candidate was Rafael López-Aliaga. Yarrow and López-Aliaga had previously been close friends, as both had come from the National Solidarity party .
In the elections, she was elected congresswoman of the republic for the parliamentary period 2021-2026.
For the second round, she announced her integration into the technical team of Fuerza Popular, whose presidential candidate was Keiko Fujimori.[6]
Yarrow served as a congresswoman for Popular Renewal, a party that had joined the Democratic Bloc coalition. According to the newspaper Perú 21, she had negotiated for her party to nominate her for the presidency of the Board of Directors.[7] However, along with two other congressmen from the group, she resigned due to "acts of harassment" by Congressman Jorge Montoya Manrique [es]. They then decided to join the Avanza País caucus.[8][9]
