By Alexander Villegas

SANTIAGO (Reuters) -Jose Antonio Kast’s far-right Republican Party made strong gains in both chambers of Congress following Chile’s Sunday presidential election, but fell short of majorities and will need to forge alliances to pass reforms.

Most of the gains came at the expense of Chile’s traditional right-wing bloc. The anti-establishment People’s Party, led by TV commentator Franco Parisi, went from one seat to 14 in the lower house, becoming its fourth-largest as voters soured on traditional parties.

“Chile’s traditional parties are in crisis,” said Guillermo Holzmann, a political analyst from the University of Valparaiso. “Their votes have dropped and new leaders have emerged, like Parisi, like Kast.”

Kast is favored to beat front-runner Jeannette Jara, the le

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