Péter Magyar, a rising challenger to Hungarian Prime Minister Viktor Orbán, addresses people at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
People wave the Hungarian national flag during Péter Magyar's speech at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
People listen to Péter Magyar's speech at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
Péter Magyar, a rising challenger to Hungarian Prime Minister Viktor Orbán, speaks before addressing people at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
People listen to Péter Magyar's speech at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
Péter Magyar, a rising challenger to Hungarian Prime Minister Viktor Orbán, addresses people at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
Péter Magyar, a rising challenger to Hungarian Prime Minister Viktor Orbán, addresses people at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
People wave the Hungarian national flag during Péter Magyar's speech at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
People clap during Péter Magyar's speech at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
Péter Magyar, a rising challenger to Hungarian Prime Minister Viktor Orbán, arrives with his girlfriend to address people at a campaign rally in the rural city of Debrecen, Hungay, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
Péter Magyar, a rising challenger to Hungarian Prime Minister Viktor Orbán, addresses people at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
Péter Magyar, a rising challenger to Hungarian Prime Minister Viktor Orbán, addresses people at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
People clap during Péter Magyar's speech at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
Péter Magyar, a rising challenger to Hungarian Prime Minister Viktor Orbán, addresses people at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)
People listen to Péter Magyar's speech at a campaign rally in the rural city of Debrecen, Hungary, on Sunday, May 5, 2024. Magyar, whose TISZA party is running in European Union elections, has managed to mobilize large crowds of supporters on a campaign tour of Hungary's heartland, a rarity for an Orbán opponent. (AP Photo/Denes Erdos)