Multiple sources confirm that Iran's president sent an open letter to Americans. One cross-reference mentions accusing Trump of acting under Israeli influence, and web search results confirm Masoud Pezeshkian penned an open letter to the American public.

Web search results indicate that Masoud Pezeshkian penned an open letter criticizing the US war against Iran. While Wikipedia confirms his presidency and the election context, the specific criticism of the US war in an open letter is supported by multiple web search results referencing this event.

Multiple web search results reference Masoud Pezeshkian's open letter to the US public, and the context provided by the web search results suggests this action is notable or unusual in the context of US relations, although no source explicitly states it is 'unusual by Iranian standards.' However, the repetition of the event across multiple search results supports the premise of its significance.

Multiple web search results directly quote or paraphrase Masoud Pezeshkian questioning whether the US war serves American interests and whether there is an objective threat from Iran, citing his questioning of the war's motives.