"I’ll be watching the WITCH HUNT of Jair Bolsonaro, his family, and thousands of his supporters, very closely," Trump stated. "The only Trial that should be happening is a Trial by the Voters of Brazil — It’s called an Election." Here are five things to know about both men and their kinship.

As Brazil’s Luiz Inacio Lula da Silva and Donald Trump trade blows, the person they are fighting over has sent mixed signals to investors trying to divine who will blink first.

Tensions between the U.S. and its NATO allies have cooled off since most of the alliance's member states agreed to increase their defense spending from 2 percent of GDP to 5 percent by 2035, which many Trump supporters say is proof that his hard-charging negotiating tactics, even among friends, produces results.

Brazil said Wednesday it had summoned the US charge d'affaires in a diplomatic row following President Donald Trump's criticism of the coup trial of his right-wing ally, ex-leader Jair Bolsonaro.The foreign ministry in Brasilia told AFP that envoy Gabriel Escobar will be called to explain an embassy statement describing Bolsonaro as a victim of "political persecution" -- echoing Trump's claims of a "witch hunt" against the 70-year-old Brazilian firebrand.

Donald Trump threatened to impose a 50% tariff on Brazil over its domestic political affairs, the most extreme case yet of the US president weaponizing trade policy to make unrelated demands.