Because she’s been there for quite some time now and achieved very little legislatively.

The extreme grandstanding for her Twitter followers got her boxed out by her own party. She’s now just the lady with the socialist hot take for the evening news without any real means to change anything.

She's still a house representative, being known at all is a massive first step in such a large body.

She's also just survived her first election as an incumbent. Two years in the house as a freshman with a Senate and president that would block everything anyway is not a time scale where you can reasonably expect to have massive legislation passed.