Eisenhower allowed the Russians to get to Berlin first.
And he saved thousands of American lives by doing so. Russians paid dearly to capture the Reichstag.
Worth remembering that Ike didn’t just do that because Ivan was more accepting of the horrific number of casualties that taking Berlin would possibly involve, but also because Ivan had recently repeatedly proven that he was the grand master of urban warfare bar none. The taking of Aachen in 1944 by the US had been Stalingrad Diet Lite and it left a bad taste in US commanders’ mouths.