She had power in MN, but had not become a "national" politician (yet).
I suspect that unless you live in New Mexico, you have no idea who the speaker of the NM House is. That's not a diminshment of the office or the person holding it, it's a recognition that while such positions come with significant power within the context of a state, they are quite hidden from residents of other states.
For instance do you know Brandon Ler, the Montana House of Representatives speaker? Or, say, Nathaniel Ledbetter, the Alabama House of Representatives?
Are they "niche" politicians? In their states, no. But, absolutely yes when it comes to people from other states and more so from across the world.