She was co-President of the Politics Can Be Different (Lehet Más a Politika; LMP) party from 2013 to 2018, and its candidate for the position of Prime Minister during the 2018 parliamentary election.

Global climate protection and dedication to the green agenda, commitment to democracy and democratic Hungary, and equality of rights are consistently the main driving forces throughout her professional life.

[2] She functioned as an independent MP between February and September 2013, when the LMP parliamentary group disbanded according to the house rules, after eight members left the caucus to establish the Dialogue for Hungary (PM).

[9] In September 2013, during a parliamentary debate Szél asked Zoltán Illés, the State Secretary for Environmental Affairs about the Roșia Montană Project in Romania, where, inter alia, he replied "just because you're pretty doesn't also mean you're smart,"[10] and heavily defended Prime Minister Viktor Orbán's politics from Szél's criticism.

[13] In September 2017, Bernadett Szél was nominated the party's candidate to the position of prime minister for the upcoming parliamentary election.

[14] Viktor Orbán's Fidesz won two-thirds majority in the national election again, while LMP received 7 percent of the vote.

Szél was re-elected MP via the party's national list, as she was narrowly defeated by Zsolt Csenger-Zalán in Budakeszi constituency.