A rising challenger to Hungarian Prime Minister Viktor Orbán held what he called the largest countryside political demonstration in the country’s recent history on Sunday. About 10,000 people gathered in Debrecen, Hungary’s second-largest city, in support of Péter Magyar, a political newcomer who in less than three months has shot to prominence. “Today, the vast majority of the Hungarian people are tired of the ruling elite, of the hatred, apathy, propaganda and artificial divides,” Magyar told the crowd. “Hungarians today want cooperation, love, unity and peace.” Magyar, a former insider with…