The theme of Wednesday's convention, “Make America Strong Again,” is expected to focus on U.S. foreign policy, emphasizing the former president's isolationist “America First” policies that transformed America's relationships on the world stage.
Mr. Vance has been a sharp critic of the Biden administration's foreign policy on issues including the withdrawal of U.S. troops from Afghanistan, the war between Israel and Gaza, security on the southern border and support for Ukraine in its fight against Russia.
Vance's nomination has raised concerns in Europe about the implications that a second term for Trump would mean continued U.S. military and financial support for NATO allies and Ukraine.
The Ohio senator told the Munich Security Conference in February that European countries should shoulder a greater burden to help the United States pivot to East Asia to counter a rising China.
He played a key role in delaying a $60bn (£46bn) military aid package agreed in Washington earlier this year and suggested he should broker a peace deal with Russia even if it meant Ukraine would have to give up territory.
But Republicans remain divided over aid to Ukraine, and it's unclear whether Vance's skepticism about aid to Ukraine will have any impact on Trump.
Former British Prime Minister Boris Johnson, a staunch supporter of Ukraine, traveled to Milwaukee on Tuesday to meet with Trump about continued support. After the meeting, he posted on X that he had “no doubt (Trump) will be strong and resolute in supporting that country and defending democracy.”
Stock markets tumbled after Trump hinted at a second Trump presidency in Bloomberg Businessweek. , OutTaiwan must pay for its own defense costs.
Asked whether he would defend Taiwan against China, which views it as a separate province, the former president said: “You know, we are no different from an insurance company. Taiwan doesn't give us anything.”
He also said Taiwan, which is crucial to the global semiconductor industry, “accounted for 100 percent of our semiconductor industry,” sending semiconductor stocks tumbling on Wednesday.
