Early beginnings

Juvin was president of the Union of Youths for Progress, a left-wing Gaullist youth movement, between 1989 and 1995. As a member of the Rally for the Republic, he joined the Union for a Popular Movement (UMP) in 2002. He has since held executive position within the UMP's Hauts-de-Seine section.

Town Counsellor of La Garenne-Colombes at 19 years old, Juvin was elected Mayor of this town in 2001. He has always been elected in his municipality (Mayor, Town Counsellor) in the first round, with 54% of votes in 2001,^[10] 58% in 2004^[11] (administrative district elections) and 67% in 2008.^[12][13]

Vice-President of the Hauts-de-Seine Departmental Council from 2004 to 2009 (under the Presidency of Nicolas Sarkozy), Juvin experimented the implementation of the RSA and of an Alzheimer departmental plan. He also implemented the return-to-work action plan of RSA beneficiaries, and tackled the issue of the schooling of disabled children. All those measures have been later on taken up at national level.

Juvin is currently UMP Political Advisor after having been National Secretary in charge of Professional Federations and National Secretary in charge of Health, Solidarity and Disability.

He was the Mayor of La Garenne-Colombes, where he was first municipal councillor between 1983 and 2001 before being elected mayor that same year and easily re-elected in 2008. Since his election, he launched 4 twinning programmes for the city of La Garenne-Colombes with Valpaços (Portugal) in 2004, Yoqneam (Israel) in 2006, Clarksville (United States) in 2008 and Daroun-Harissa (Lebanon) in 2011.^[14]

Member of the European Parliament, 2009–2019

In the 2009 European elections, Juvin was the fifth candidate on the Union for a Popular Movement list in the Île-de-France region, and was elected to the European Parliament.

Juvin was a Member of the European Parliament from 2009 until 2019. He served on the Committee on the Internal Market and Consumer Protection and of the Committee on the Environment, Public Health and Food Safety. He was furthermore Vice-President of the inter-parliamentary delegation for the relations between the EU and Afghanistan, and a member of the inter-parliamentary delegation for the relations between the EU and Iran.

Juvin served as rapporteur for the European Parliament on a directive on the award of services and works concession contracts and works for the EPP on the regulation on clinical trials. He was furthermore rapporteur for the European Parliament on the Impact of Advertising on Consumer Behaviour, and on electromagnetic fields, and worked as rapporteur for the EPP on a variety of files: the reinforcement of the rights of vulnerable consumers, the reduction of health inequalities within the EU, the establishment of a collective redress system at EU level, data protection, the reinforcement of the food supply chain in Europe and pharmacovigilance. Moreover, he was tasked by the French EPP Delegation to deal with the project of creation of a European Civil Protection Force.

In addition to his committee assignments, Juvin is Vice-President of an EPP internal think-tank on the future of Internet (“Internet: Today and Tomorrow” Working Group).^[15]

After Michel Barnier's nomination as European Commissioner for Internal Market, Juvin ran to chair the UMP group of PPE presidency. He was defeated with a very wide majority on February 9, 2010, his colleagues electing Jean-Pierre Audy.^[16]

From June 2009 to January 2010, the date of his resignation of the General Council of the Hauts-de-Seine, Juvin kept his councillor's mandate looking till the definitive validation of the European elections of June, 2009.^[17]

In response to France’s anti-terrorism legislation allowing mass surveillance of suspected terrorists following the January 2015 Île-de-France attacks, Juvin and Thierry Solère sent a joint letter to President of the European Commission Jean-Claude Juncker warning that, without proper safeguards, the new intelligence measures would violate the Charter of Fundamental Rights of the European Union.^[18]

In 2016, Juvin supported Alain Lamassoure's candidacy as President of the European Parliament; the position eventually went to Antonio Tajani.^[19]

For the Republicans' 2016 primaries, Juvin endorsed Nicolas Sarkozy as the party's candidate for the 2017 French presidential election.^[20][21] In the party's 2017 leadership election, he supported Laurent Wauquiez as new chairman. In 2018, Wauquiez included Juvin in his shadow cabinet; in this capacity, he served as opposition counterpart to Minister of the Armed Forces Florence Parly.^[22][23]

Candidacy for 2022 presidential election

In 2021, Juvin announced his intention to run as the Republicans’s candidate in the 2022 presidential election.^[24]

During his campaign, Juvin defended the reduction of social security contributions, advocates the postponement of retirement to 65 years and the extension of the legal working week. On the other hand, he is not in favor of job cuts in the civil service. In the field of government, he proposes the introduction of migration quotas, the temporary withdrawal of France from the European Convention on Human Rights,^[25] the exclusion of migrants from all social assistance for five years, the introduction of minimum sentences, and wants foreigners who commit serious offences to serve their sentences in their country of origin. Unlike his opponents in the party, he does not focus on immigration and security issues, seeking to introduce the theme of public services into the political debate. He is seen as the least liberal of the LR competitors for the party nomination.^[26]

At the party's 2021 congress, Juvin failed to win sufficient support and subsequently endorsed Valérie Pécresse.^[27]

Ahead of the Republicans’ 2022 convention, Juvin endorsed Bruno Retailleau as the party’s chairman;^[28] however, Éric Ciotti won the vote. In 2023, Ciotti appointed Juvin as member of his shadow cabinet and put her in charge of health policy.^[29]