(ANSA-AFP) - BUDAPEST, 23 OTT - Hungary's government and opposition will hold rival rallies in Budapest on Thursday, each looking to drum up support ahead of tense elections next year. A "peace march" by supporters of Prime Minister Viktor Orban and an opposition gathering later the same day come as US President Donald Trump and his Russian counterpart Vladimir Putin said last week they plan to hold a summit in the Hungarian capital. Although Trump said Tuesday he had shelved the planned summit for now, the announcement has strengthened the hand of Orban, who has hailed the potential meeting. With national elections due next April, government supporters will gather in a park for a march across a bridge over the Danube to parliament, in front of which the nationalist premier is slated to give a speech. Opposition leader Peter Magyar, who has been mounting an unprecedented challenge to Orban's 15-year premiership, has also called for a "national march" in Budapest, which he will address later Thursday. Gatherings in support of the ruling Fidesz party, dubbed "peace marches" even before Russia's war in Ukraine and Hungary's self-proclaimed pacifism, have routinely occurred before elections since Orban's return to power in 2010. This time, the rally coincides with a national day commemorating Hungary's 1956 anti-Soviet uprising, crushed by Moscow with overwhelming force. (ANSA-AFP).