Learn French: Le dirigeant ne songe plus à moi. - The leader no longer thinks of me.

This is the core of your current lesson! Usually, an indirect object pronoun goes before the verb (like il me parle). However, a specific group of verbs—including songer à (to think of), penser à (to think about), and faire attention à (to pay attention to)—do not allow this when referring to people. Instead, you must keep the preposition à after the verb and follow it with a stressed pronoun (moi, toi, lui, elle, etc.).

I usually use penser à for "to think of". How is songer à different?

Songer à is a great B2-level synonym for penser à, but it often carries a slightly softer or more reflective nuance. It can mean "to think of," "to deeply consider," or even "to daydream about." While penser à is the everyday default, songer à sounds a bit more literary. Note that they both follow the exact same grammar rule: they both require à + stressed pronoun for people.

If I wanted to say "The leader no longer thinks of it" (meaning a project, not a person), would I still use à lui?