He was a good wartime leader because Rosevelt, commonly known as FDR, had the leadership skills to guide the US through the Great Depression of the 1930s and most of World War II.
He’s also the only president to serve more than two consecutive terms in office – managing to secure a fourth term before he died in 1945.
Yes, because he showed great leadership. He helped the US out during the Great Depression. He was confident, and turned out to be a great, powerful, and respected president.