The two sides began a top-level security dialogue aimed at countering China’s growing power in the region.
Record daily rises in United States, Russia and France
Amy Coney Barrett took the oath of office at the White House alongside Trump.
The Trump administration has since 2018 enforced sweeping sanctions aimed at ending all of Iran's key oil exports.
"We win Pennsylvania, we win the whole thing," the Republican president told cheering supporters in Allentown.
The National Weather Service warned that the combination of low humidity, dry vegetation and strong winds had created "the most dangerous fire weather conditions" this year.
Trump, 74, has often accused Biden, 77, of being senile as the two candidates battle it out ahead of the November 3 vote.
Trump was holding 3 events in Pennsylvania alone on Monday, suggesting he’s on defence in a state that he won in 2016.
Bolsonaro, who caught and recovered from, Covid-19 in July, has repeatedly downplayed the gravity of the virus.