José Antonio Kast secured a decisive victory in Chile's December 14 presidential runoff, winning 58.16% against Communist Party-backed Jeannette Jara's 41.84% with 99.97% of votes counted, marking a dramatic swing from leftist governance to hard-right administration following President Gabriel Boric's term.

Kast, a former lawmaker and son of a Nazi party member who has openly expressed admiration for the Augusto Pinochet dictatorship, led in all 16 regions of the country, including the traditional left-wing strongholds of Valparaíso and the Metropolitan Region encompassing Santiago. His dominance extended across the northern mining districts and southern agricultural zones, delivering what the president-elect hailed as a "broad mandate" and "tremendous responsibility."

"Chile needs order—order in the streets, in the state, in the priorities that have been lost," Kast stated in his victory speech, pivoting immediately to his signature security-focused platform. When supporters interrupted to boo Jara, he sharply exclaimed, "Respect!", in a notable departure from his confrontational campaign persona.

Kast focused heavily on security issues during his campaign, with his views clearly resonating with voters. He has modelled certain policies after those of El Salvador's Nayib Bukele, including expanded maximum-security prison construction and severing gang members' external communications. 

"Without security, there is no peace. Without peace, there is no democracy, and without democracy there is no freedom, and Chile will return to be free of crime, anxiety and fear," he added.

On migration, he has pledged to force undocumented migrants to finance their own deportations, a stance that gained salience.

The migration issue came into full focus earlier this month as Peru deployed military personnel to patrol its southern border with Chile and declared a state of emergency as Venezuelan migrants increasingly fled northward. Since then, Peruvian and Chilean migration authorities convened in Tacna to coordinate border management strategies.

Kast's economic platform, which has been broadly welcomed by investors, proposes $6bn in spending cuts over 18 months, though economists across the political spectrum have questioned whether such austerity is achievable without reducing social benefits. It also sets out plans to relax labour laws, cut red tape and axe corporate taxes to boost foreign investment.

"We're going to have a difficult year, a very difficult one, because the country's financial situation is bad," Kast said in his first speech as Chilean president.

Argentine President Javier Milei was the first foreign leader to congratulate Kast. He simply wrote "the left recedes" in an X post, alongside a map highlighting South America's rightward shift.

US Secretary of State Marco Rubio congratulated Kast, mentioning "shared priorities to include strengthening public security, ending illegal immigration and revitalising our commercial relationship." Jara, who served as labour minister under Boric, conceded promptly. "It is in defeat that we learn the most," she told supporters at a rally in Santiago.

The outcome consolidates a conservative bloc across a growing part of South America, with implications extending beyond domestic security policy to regional trade relationships, migration management, and economic coordination as Chile transitions from one ideological extreme to another. Kast’s victory came as little surprise as it was widely predicted by polls, which pointed to Chileans’ mounting concerns over the country’s security and migration issues.