の演説は

X's speech...

→ の
phrase Uncommon #13,330
X's speech... の marks possession, and は marks the topic. This phrase usually appears after a person's name or pronoun, such as 彼の演説は (his speech).
JA: 彼女の演説はとても感動的だった。
EN: Her speech was very moving.

トムの演説は素晴らしかった

Tom's speech was excellent.

その英雄の演説はすべての聴衆感動を与えた

The hero’s speech moved everyone in the audience.

の演説は冷淡沈黙で迎えられた

My speech was met with cold silence.

トムの演説はよかった

Tom's speech was good.

大統領の演説は世界の緊張緩和意図したものだった

The president’s speech was intended to ease tensions around the world.