text:  The Hungarian Prime Minister Viktor Orban has written to EU leaders to say that Donald Trump would be ready to act as a peace broker in the war in Ukraine if he were to be elected in November. Republicans attending their national convention in Wisconsin have officially endorsed Donald Trump as their party's candidate to win back control of the White House in November. Mr Trump greeted rapturous supporters with fist pumps, the gesture he used moments after a bullet grazed his ear in Saturday's attempt on his life.